Hard to believe that any of this is real. If it was, these videos would be on Capcom's account, not just some random YouTuber's. Also, even if they went through the trouble of creating new Mercenaries characters just for a cheap remaster (or rather skins for existing ones, as that is clearly Jill in the second video), it would be a rather strange decision to bring in Helena of all people, probably the least appreciated (new) character in all of RE6.