I know the DS card has a memory limit, but is it possible to make DLCs for Pokemon like some other console games?
And Idea I had would be for them to make each region in gen V format, and release it on the Dsi store for say, $20-$25. (They could release a region each year.)
Then, once you downloaded it, you had to have Black/White in your Dsi and then you could play the game. It wouldn't be connected to the cartridge physically, but Your information would transfer over so you could play through the storyline of FRLG/HGSS/RSE/DPPt on your trainer account.
Once you beat a certain storyline, you could then Transfer Other region Pokemon to that Region and keep playing through it.
pew pew pew.