It has to happen. Not any time soon, but at some point it makes sense that Hikari, May and their rivals will merge into one big contest storyline. The most likely way this would happen is if the group visit Johto but any post-Sinnoh saga could work. (May, Drew and Harley should rightfully have 5 ribbons each by that point but maybe they are waiting for the Grand Festival.)
A big Grand Festival between the lot of them would be great, especially as a big farewell if the writers ditch contests for a new subplot in Generation V (which solely depends on what Game Freak decides to do with the games.)
With Hikari only getting started there's still plenty of development to be done on her side but I just want to see when Drew and Nozomi discover they have the same farewell wave. :-D
A big Grand Festival between the lot of them would be great, especially as a big farewell if the writers ditch contests for a new subplot in Generation V (which solely depends on what Game Freak decides to do with the games.)
With Hikari only getting started there's still plenty of development to be done on her side but I just want to see when Drew and Nozomi discover they have the same farewell wave. :-D