Anyway, I've gotta say I'm pretty excited, but I'm now in the same place I was in 2004, 2007, 2010, and 2012. I was disappointed all four times.
Something about Shane Black being involved has me much more interested though. I think as a writer he's much more self referential, if that makes sense. He seems like the guy who will direct Predator as a movie that doesn't take itself too seriously, which the first two films excel at. Predators sucked because of the whole "we think we're above Predator 2 and we just want to remake Predator on another planet."
I can see Black being the guy who's like "f**k it, let's just go crazy without being pretentious like Predators (and Prometheus) and just make an 80s action movie." Although my excitement will easily be stilted depending on who's going to be in the movie. Because Arnold is very shittily trying to restart his career, I could see him being interested. Danny Glover, probably not unless they give him more money than he probably deserves.