At this weekends Eternal Twilight 3 - "Can't Fight an Eclipse" event in Birmingham (UK) the first three guests were announced for Eternal Twilight 4 - "A New Dawn" in October (22nd - 24th).
Guests announced PETER FACINELLI (Dr Carlisle Cullen), ALEX MERAZ (Paul) and CAMERON BRIGHT (Alec).
Tickets are on sale now via the Massive Events website for the event http://www.massiveevents.co.uk/eternaltwilight/
(Which they have not updated yet to show the guests. But it's understandable seeing as they're in Birmingham wrapping up ET3.)