Katamari Damacy.
Got to replaying this game and it's sequel, We Heart Katamari, last night. Just rolling around inside these brilliant games really got me to thinking about a sequel coming to the Wii.
Econmonically and business wise, I don't see why it won't happen. Namco and Nintendo have a strong business relationship, and Katamari only hit the PS2 over the Gamecube because the PS2 base was so much larger. Now the PS3 is moving infinately far away from low-polygon looking games like Katamari, and the Wii is closer to Katamari's philosophy of play. It's a match made in gamer's heaven.
Not only that, but Nintendo's Blue Ocean philosophy begs to have Katamari Damacy on it's side. I have parties at my house, and people flock to watch "the rolling game" that they've seen at other people's houses. They love "the rolling game". (Miyamoto's wife probably would too).
Creatively, the Wii offers a lot the PS2 didn't, most importantly control with the Wiimote and Nunchuck. Other ideas likely implemented would be rolling up the Miis (or using one as your playable character), and the possibility of Elebits-style level creation and sharing.
The only reason I can think of for this not happening? If Namco is putting the series to sleep and shifting their brilliant creative minds behind Katamari Damacy onto brand new projects which could be destined for any platform.
Thoughts? Rumours? Speculation? (If anyone suggests that The Prince is a playable character in Smash Bros Brawl, though...)