This would sure be great, but it's very unlikely that games that did not sell well get sequels. And Ubi Soft already has a fps series for the Wii with Red Steel, so I don't see a reason that it could come back.
I did not buy the first game because I'm not very interested in fps, but it was on my list really seemed to be a good, original game.
And on another note, Beyond Good and Evil was GREAT, only it's length was a contra. It is sad as hell that this game did not sell well.