they can put new power but the point is that it still yet another mario game
seriously you guys made luigi mansion! it wasn't a great game but at least it was different! so please try again!
All the Mario games were very unique until this generation. Well, except Mario 3 and Mario World, but those were different enough where you could tell which was which. If you show a clip of MG and MG2 back to back, you'd be hard pressed to tell which was the original and which was the sequel.
Funny how the games that would be best suited for the Wii remote have yet to see sequels: Wave Race, 1080, F-Zero, and Star Fox. Then again I'm sure they'd copy the stupid flying mechanics of Wii Sports Resort for Star Fox. Who wants to hold their wii remote like a 5 year old with a paper airplane?