User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-124.181.122.102-20130310113137

I think it`s safe to say that Giadrome is confirmed. Look at the 2013 trailer and look at the armour (first greatsword one). Compare to this:http://monsterhunter.wikia.com/wiki/Giaprey_and_Giadrome_Equipment