About the Predators 2010 movie... is the bad predator a crossover with an alien?

No, the "predalien" had no culture, or civilization it was merely a freak accident. The other tribe of predators in this movie have apparently been competing with what are apparently the p*ssy predators (the only ones we've sen in movies up until now) for a long time. Also, this other tribe doesn't have any of the characteristics of the predalien thing in the AVP movies (which were pretty lame).