I think your estimates are a little off my friend, so far world wide the movie has grossed:
$50,571,704, that's not too bad since the movie basically opened 8 days ago. From what I understand, AVPR was in theaters for about 13 weeks [AVP was in theaters for 16 weeks], so we still have 12 more to go. This isn't county any potential sales of DVD's and Blue-Ray discs.
I firmly believe that the movie will be a box office hit and will line up the next movie.
I believe that when Rob Rod wrote this movie, he actually wrote more then one.
http://boxofficemojo.com/movies/?page=main...d=predators.htm
So far the ranking it receives is a: "B". The only other Predator movie that was ranked higher then a "C" was the original "Predator". Predator 2, AVP, and AVPR were all ranked "C".