Some more screenshots have today been released by the publishers for this game.
We have them on latestscreens now:
http://www.latestscreens.com/screenshots/22699/Wii/Guitar_Hero_World_Tour/
http://www.latestscreens.com/screenshots/22702/PlayStation_3/Guitar_Hero_World_Tour/
- There are some older ones mixed in there too.
They will be on Supercheats later too.