I don't see 20th Century Fox rebooting the franchise. If they wanted to do that, they would have done that after X-Men: The Last Stand. Apparently they were considering that with X-Men: First Class until Bryan Singer came on-board. It was going to essentially reboot the series with younger versions of Cyclops, Jean, Iceman, Beast, etc. when Josh Schwartz was writing it and then Singer pitched his version which then tied back into the original trilogy. Now with First Class and The Wolverine (featuring Hugh Jackman as Wolverine), I think it would be much more difficult for Fox to reboot the series now than when The Last Stand debuted in 2006. I mean, they had an opportunity to do that with First Class (which would have ended the "Singerverse" with X-Men Origins: Wolverine) but they clearly opted to continue that universe. Honestly, I think we'll see a sequel to First Class. I'm sure the film will do well in box office receipts and 20th Century Fox will green-light a sequel. If The Wolverine wasn't in development, then I would be a bit less confident. Unless 20th Century Fox plans to reboot the series after The Wolverine, which could conceivably happen if that movie bombs.