I hope they put all the regions into one game, plus a new one. Seeing as each region takes about 50 hours to complete (at least for me, with the minimal amount of side quests), it would be nice and long.
I also think that in order to avoid being hilariously over leveled, you should take control of a new trainer each region, with a new team. They could all meet up and share an inventory during the climax, possibly even exchange Pokemon or switch teams on the go. Maybe even go back to each region for grinding once you're done with it. Kind of like what Pokemon Special did… (at least for the first three parts)
You know you read too much when you dream about flying books.
If they can deliver a refined pokemon adventure for consoles (none of that collosium crap), link and trade with DS, cross compatibility with DS and Wii U systems, and include most of the pokemon with an actual plotline and maybe bump it up to a teen rating then it's on. There is so much they can do.