Spoiler:
I think it was last year, or some while ago, I had an interview with the master himself, Satoshi. Me and my friends got first information on the 12th movie and other things. We confirmed that Arceus was in the movie and that a special form of Pichu. He also told us that there are upcoming remakes and a Pokemon WiiWare spin-off, which has all happened. Some were posted on PokeCommunity, but not many people believed me. Just last week, my friend got to go to Japan with his class. Because he were learning about Arts and Animation, so he got a tour in the place where they draw the episodes and all that. When Satoshi was there, somehow, he gave me a call and I told him to ask him questions. Well, the whole class was allowed to ask him questions. My friend, let's call him Jake, didn't go to depth yet. When the question time ended, he went over to him and asked in the Pokemon questions, which was sorta like an interview. I'm not going to rush into things but, he confirmed that there will indeed be a Johto Battle Frontier and 5th generation. He says the Battle Frontier will be located in the Johto region, with the frontier brains from the one in D/P/Pt. However, he didn't reveal much about the 5th generation except that it still kept the whole grass-fire-water starters and that it was still in production. He stated that Pokemon will continue and live on forever. He also promised that 5th generation will be a generation that we won't forget, and possibly one of the bests. They are currently slating for the 14th movie to be first 5th generation based movies. I'll get more information soon.
So there. Read it. :]