daveberg,
                                    Xenomorph,
                                    12 years ago                                
                                
                                    We don't need another AVP. Ever. 
As for the individual franchises, well, I wouldn't mind seeing a new Alien film, but one which has nothing to do with Ripley. Have another strong female lead used in a good story guided by a decent director and things will be fine. 
That said, we don;t really need that, as Prometheus is carrying on, taking us to new places in the Alien universe.
As for Predator? Hmm. A follow up to the latest one, or reboot the whole thing? Undecided.