Test footage suit was cgi, he was in a tracking suit for that
http://www.cosmicbooknews.com/content/ryan-reynolds-behind-scenes-deadpool-test-footage
Morena Baccarin is now a part of the Deadpool movie. No word as to which character she'll be. People have been speculating her to be Death or Wasp but I think they fall under Marvel/Disney and not Fox. The more popular choices have been Domino or Copycat.
http://comicbook.com/2015/02/18/morena-baccarin-cast-as-female-lead-in-deadpool/