like I said... it will be multiplatform, or they will bet the house on the Wii. Who knows. Maybe Nintendo let them use Mario for M&S with an agreement to give it to the Wii exclusive. This will be a holiday launch title, and has been in Devopment for at least a year or 2.
It is very possible that if Sega is putting so much effort and money into the game that they are pushing Wii HW to its limits(or close to it)
remember we have yet to see what the Wii can do, maybe those pics were the Wii?
I has always felt the Wii is capable of doing graphics similiar to a 360 launch title(back in 05) like DOA or something.
End of 2009 Predictions (Set, January 1st 2009)
Wii- 72 million 3rd Year Peak, better slate of releases
360- 37 million Should trend down slightly after 3rd year peak
PS3- 29 million Sales should pick up next year, 3rd year peak and price cut