We're some way into D/P now and a lot of captures have already happened. But there is still a long way to the end of the series and the start of whatever the anime for the next generation is called. So what do you think the teams of the characters will look like by then?
When Generation V is nearby, it is likely that some Pokémon of that generation will be given to main characters again. That is a bit harder to predict, so this also can see seen as predictions for the end result of the teams for the Sinnoh saga.
Ash
Pikachu (duh)
Dodaitose (His last grass starter evolved all the way but this would be nothing like Sceptile since the focus would be on defense.)
Mukuhawk (Since it's already a Mukubird this early, another evolution is a given.)
Booburn (Both his rivals will have the electric counterpart. Another explanation for this choice will be given below.)
Flowsel (There’s not many water Pokémon in Sinnoh but Flowsel is a good big Pokémon and Ash doesn’t have any big Water Pokémon.)
Lucario (This spot could be anything but I quite like the idea of this one. As well as the obvious eighth movie links (which I haven’t actually seen) it‘s a strong fighting type which he is lacking. Maybe he could hatch it like you do in the game.)
Hikari
Emperte (If Pochama has to evolve, I would prefer it evolved twice. And evolved a bit earlier than Combusken did.)
Mimilop (Her first capture is still a suitable contest Pokémon when evolved.)
Pachirisu (This capture is pretty much confirmed to happen and it doesn’t evolve.)
Chikorita (If the G/S remake happens, this is the best starter for contests. And Ash's Chikorita has actually evolved.)
Eteboth (Everyone who didn’t notice Aipom missing above loses five points. With Aipom's established interest in contests, I think Nozomi's comments should be considered. Of course, it would take Hikari catching a suitable Pokémon for Ash before we get to see a trade between main characters. Magby is very good candidate for a Pokémon that Hikari catches for its cuteness but prefers showing its strength rather than any other aspect of contests.)
May only had four usable Pokémon at a time. (Munchlax wasn’t usable until Kanto.) While Hikari is publicised as being a definite co-star, I don’t think she will get more than five Pokémon at a time.
Brock
Sudowoodo (He already has it and it doesn’t evolve again.)
Gureggru (Probably won’t evolve. It’s not a very good battler for one thing. That and Dokurog's poison is fatal.)
Yukikabli (He’ll probably catch one more Pokémon. This was a complete guess out of the few possibilites available.)
Jessie
Wobbuffet (She’ll never get rid of that thing.)
Seviper (A staple of her team. I can see it surviving this gen, though not the next as well.)
Skutank (I can just see her being the only character who finds Skunpoo to be cute. It would also be nice to see a Team Rocket Pokémon evolve mid-saga too.)
James
Mime Jr. (It loses its purpose as James’s cute Pokémon evolved. I would love it to be left with Delia unevolved when it does leave.)
Muskippa (Doesn’t evolve. Will definately survive the saga.)
Dustox and Cacnea are likely to leave soon, with Cacnea probably left unreplaced until some Gen V Pokémon come along.
Others
Shinji's Elekid, Murkrow and Hikozaru are guaranteed to evolve all the way.
Nozomi's Misdreavus should also evolve, though I’d prefer her Nyarmar didn’t since its evo is fugly.
We'll probably also see May's Eevee and Drew's Roselia evolve/evolved when we see them.
When Generation V is nearby, it is likely that some Pokémon of that generation will be given to main characters again. That is a bit harder to predict, so this also can see seen as predictions for the end result of the teams for the Sinnoh saga.
Ash
Pikachu (duh)
Dodaitose (His last grass starter evolved all the way but this would be nothing like Sceptile since the focus would be on defense.)
Mukuhawk (Since it's already a Mukubird this early, another evolution is a given.)
Booburn (Both his rivals will have the electric counterpart. Another explanation for this choice will be given below.)
Flowsel (There’s not many water Pokémon in Sinnoh but Flowsel is a good big Pokémon and Ash doesn’t have any big Water Pokémon.)
Lucario (This spot could be anything but I quite like the idea of this one. As well as the obvious eighth movie links (which I haven’t actually seen) it‘s a strong fighting type which he is lacking. Maybe he could hatch it like you do in the game.)
Hikari
Emperte (If Pochama has to evolve, I would prefer it evolved twice. And evolved a bit earlier than Combusken did.)
Mimilop (Her first capture is still a suitable contest Pokémon when evolved.)
Pachirisu (This capture is pretty much confirmed to happen and it doesn’t evolve.)
Chikorita (If the G/S remake happens, this is the best starter for contests. And Ash's Chikorita has actually evolved.)
Eteboth (Everyone who didn’t notice Aipom missing above loses five points. With Aipom's established interest in contests, I think Nozomi's comments should be considered. Of course, it would take Hikari catching a suitable Pokémon for Ash before we get to see a trade between main characters. Magby is very good candidate for a Pokémon that Hikari catches for its cuteness but prefers showing its strength rather than any other aspect of contests.)
May only had four usable Pokémon at a time. (Munchlax wasn’t usable until Kanto.) While Hikari is publicised as being a definite co-star, I don’t think she will get more than five Pokémon at a time.
Brock
Sudowoodo (He already has it and it doesn’t evolve again.)
Gureggru (Probably won’t evolve. It’s not a very good battler for one thing. That and Dokurog's poison is fatal.)
Yukikabli (He’ll probably catch one more Pokémon. This was a complete guess out of the few possibilites available.)
Jessie
Wobbuffet (She’ll never get rid of that thing.)
Seviper (A staple of her team. I can see it surviving this gen, though not the next as well.)
Skutank (I can just see her being the only character who finds Skunpoo to be cute. It would also be nice to see a Team Rocket Pokémon evolve mid-saga too.)
James
Mime Jr. (It loses its purpose as James’s cute Pokémon evolved. I would love it to be left with Delia unevolved when it does leave.)
Muskippa (Doesn’t evolve. Will definately survive the saga.)
Dustox and Cacnea are likely to leave soon, with Cacnea probably left unreplaced until some Gen V Pokémon come along.
Others
Shinji's Elekid, Murkrow and Hikozaru are guaranteed to evolve all the way.
Nozomi's Misdreavus should also evolve, though I’d prefer her Nyarmar didn’t since its evo is fugly.
We'll probably also see May's Eevee and Drew's Roselia evolve/evolved when we see them.
