The Hrothgar weren't even ready for presentation at the Japanese fanfest (like legit Yoshi-P made a comment that they had only been finished enough for the reveal the day before) and they mentioned they wanted to do a wolf head on top of the more feline options. My best guess is that they just plain old ran out of time and had to make due with what they had. It'd be nice if we get more options but at this point I have a feeling this is it.