They already have and they will again if they're the right games.
De Blob did well. Guitar hero 5 sold the best on Wii. Goldeneye and Epic Mickey both sold well. Tiger Woods sold better and was a better game with motion+. I think EA sports in general did really well in the early and mid life of the Wii.
I think the way to go is to fill a void in the library with a quality exclusive title.
No first FPS? Why not a new good Turok! etc etc
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