It could just be Brian & Roger performing without Paul. They could premote songs from the new album that they sing the vocals on only. Not saying that this is what's going to happen, just a thought.
Queenonline / Album Club / Prizes:
"May 2008 Prize
Queen + Paul Rodgers are playing at Nelson Mandela’s 90th Birthday Party in Hyde Park on June 27th. We are giving away a pair ‘Golden Circle’ tickets in May’s Prize Draw."
I think it seems official.