One of the main reason people love those games is because they way they look.
GTA could come to the Wii but wouldnt look much better than last gen stuff.
Plus you cant shove all that content on to Wii. It cant handle all the engines and stuff. So it would have to be watered down alot.
Thats why devolopers shouldnt try to mimic anything on WIi.
They got to stylize their games. No More Heroes and MadWorld are great examples I think.
Simply yes it can....kinda. Cut down the graphics and engines and if you cut down the engines the overall gameplay would change so it wont be the same. I say seperate the Wii from it. Not a good comparison but kinda like what EA is doing trying to seperate its All-Play sorts brand from its regular sports stuff.







