I WOULD LIKE TO SEE THIS GAME ON XBOX ARCADE SOMEDAY.
online
OKAY LET ME GET RIGHT ON THAT BECAUSE YOU ASKED!!!!1!!!
Seriously though, good luck with that. LCG as a videogame? I'm not sure it would work. Even MtGO has only had mild success, I seriously doubt they would port this any time soon. Frankly, I'd prefer it stay the way it is.
I would love for there to be an app version of this game since I'm having trouble finding a core group to play with. However, XBOX is probably not the place I'd play it.
That being said, there are already a couple of ways to play online, OCTGN and LackeyCCG both have plugins.