First off, I have to say the fact that they gave out Pizza Dog for free is just plain awesome.
Second off, it made me very hopeful. Hopeful for everyone's favor psychic canine cosmonaut: Cosmo!
Those not in the know may still have seen him on knowhere around the collector that little indie flick "Guardians of the Galaxy:"
He might've seemed like a fun/funny inclusion, but the pup has more power than you'd think. He served as chief of security for Knowhere, and wields incredible psychic abilities, which he uses as the situation warrants.
But why do I bring him up here, especially with Pizza Dog (Lucky)? Simple- before this, with no dog skeleton, he would have required a new skeleton and such. With the latest pet pup, I hope they can use some of that work to make a full team-up out of Cosmo. While I wouldn't mind a playable pup, that would require a lot more work and animation and such, and besides this Cosmo usually worked with other more primary heroes to help them get their work done. In short, I think he'd be better suited as a man/woman/robot/etc's best friend role, tagging along to help put down the threats they face.
Cosmo has worked with pretty much all the 'cosmic' heroes in the game:
Nova:
Surfer:
Star-Lord:
Rocket (They have more a frenemy relationship, but it counts)
We have fair number of Avengers and X-Men characters, but the 'cosmic' hero roster is still a bit low. Cosmo fits into this well, he'd be distinct from other team-ups, and who wouldn't love a psychic-blasting pup to help a hero? There are still two 'unannounced' premium team-ups. I love if they threw (space)dog lovers a bone and make Cosmo one of them!