I just saw Extreme open for Aerosmith at Fenway, and they killed it. I love MP, but Kevin Figueroa (is that his name?) has been doing a great job and fits in well. I don't know if that would translate to "Queen"; the original Extreme with Paul Geary were huge fans of Queen (Nuno was up front about III being their "Queen" record); I don't know if Kevin shares that.
I really miss the Portnoy/Gilbert tributes; I'd love to see "Dragon Attack" or "One Vision", whatever Mike calls it, with him, Paul, anyone but Billy Sheehan on bass (I love Billy, but he's not John Deacon-eque), and maybe Gary on vocals (though I personally would love to see Tom Chaplin from Keane, though I can't imagine he's in Mike's circle). Maybe Eric Gillette. NOT Jeff Soto.