Not sure this one will really happen, though.
I have to agree with you on that one. With the decline in interest as well as box office revenue with Stallone's latest films, I honestly don't see a fifth Rambo film getting made any time soon. I'm sure a studio, this being Millennium Films would greenlight it, but, still, I doubt it would happen. The last film did decent, but no one, at least everyone I know who saw it, even remotely enjoyed it.
Hmm this movie looks interesting. I have never seen the Mad Max movies though.
The original film is pretty good, though I prefer the sequel, The Road Warrior much more. The third film, Beyond Thunderdome is simply just "meh" and I think it's the weakest in the series.