"MI4" Cast & Director Want A Fifth Film!

While in an interview with some online movie site, "Mission Impossible: Ghost Protocol" cast members and director hinted that a sequel to the fourth film is in the pipe lines already over at Paramount. Simon Pegg is dead keen on a sequel and Tom Cruise confirmed that he won't be leaving anytime soon like originally rumored. Director Brad Bird loved working on the film, which was his first live-action film, and wants to return and make another one with the same cast.
I haven't seen the latest one yet. I really want to and I've heard and seen that it's had a great write up and it's made mega money in the box-office so no wonder "Mission Impossible 5" is already being discussed.