With Pokemon Conquest being a huge success and 3DS platform having viable DLC options, I believe that we'll see a lot more Pokemon franchise spinoffs.
Here's an idea to satisfy both the hardcore fans and Nintendo/Trollfreak greed. A new installment of TCG. Rules:
1) no single player mode, online only;
2) you purchase cards in closed packs of 10/20/60 (as in real life) with a set price of X real life USD per pack;
3) players are able to battle each other using cards online, as well as trade their cards without playing.
Basically, instead of collecting the hard copies of cards, and seeing other players face-to-face, people will collect virtual stuff and compete virtually. With 3DS tight-ass security on ROMs and save data, no cheating will be possible for quite a time.