He had this to say:
Yeah, we are doing another ‘Rambo,’ but the conflict is whether to do it in America or a foreign country.
I had heard speculation about this possibly happening but I never actually believed Stallone would even consider the idea much less actually go ahead with it. Although last year’s Rambo was a half bad/half awesome movie (the first half being dreadful, but the second half kicking copious amounts of ass), it ended pretty much as perfectly as could be, bringing the character’s journey full circle to where we first saw him in the early 80s.
To me doing another film is wholly unnecessary and just seems to be to make money and nothing more.