i supose that if the game supports HD resolutions, putting it on the Wii wouldnt do much. it would just be a direct port from the ps2 version.
Honestly, being able to play it period is more important to me than being able to play it in HD. Direct port of the PS2 version? I'll take it.
EDIT: Alex- I see. I pretty much have no conception of how much memory a given thing takes, (nor do I know how much is on my Wii) so this never would have occurred to me. But I went with it because it was part of the campaign.