Naw son, this was all CG. This was only test footage sent to fox to pitch the idea of what the movie would be like. Keep in mind this is from 2011/2012. As it stands, everyone involved in every aspect of this movie wants it to happen... yet fox hasn't done a damn thing with it. This "leak" might be to drum up interest so whoever at fox gets a better idea on how bad people want it.
Also, last I read, the entire script was/is being re-written because x-men: days of future past screwed with the timeline and they have to adjust for that.