The 3DS has managed to find its relative success in the post iPhone market and it seems Nintendo has some plans to keep at it at least for an additional year. This comes from Emily Rogers and her latest post recapping what she’s heard. She claims 3DS will continue receiving games for an additional year.
I’m thinking perhaps the next Pokemon game could be cross gen? She did claim GameFreak was working on an NX game and the lack of BC means no 3DS games will be playable on it so it seems to make some sense to me.