I have pets at home and love having them in the game, but don't particularly want them to be involved in battles. However, I've often thought how nice it would be if they matured and grew larger as they leveled up. And some should come larger when they hatch. It's seems silly to have an elephantine pet that is as high as your knees
Please make pets bigger and more interactive in battles, they just stand there and you hope they cast a spell. I wish they could actually help battle. It would be cool if you had more of a personal connection to your pets, because right now they are just items that you put through hours of training to make you do more damage, its lame and kinda cruel. We should have more freedom with our pets.
I think that having more options to train and reward your pet sounds great. I'm beginning to get bored of the pet pavilion games that have been around for years, although they were fun. And maybe there could be a mini pet pavilion in each world? They could hold different games than the ones in wizard city and it gives an extra surprise for wizards entering new worlds for the first time.