If you haven't heard the interview with Cory Stockton (aka: Mumper, lead content designer) over at WarcraftPets, be sure to head there now and give it a listen!
I'm looking forward to future patches, but I do agree that 30+ pets each patch would be overkill. Although going from 30 one release to an incredibly small number, like 2 the next patch, would be somewhat extreme.
I think slowly reducing the number with each patch is a good idea. It lets collectors have something new to focus on, but at the same time doesn't overwhelm or underwhelm them.
Honestly, I'm not sure if I'm ready for a epic/legendary quality pets and boss battles yet. Would I love to see them? Absolutely. But I haven't gotten to the point where I'm just sitting around, wondering what to do next in Pet Battles. It's not boring and I'm not exactly pining for brand new content just yet.
Plus the thought of epic/legendary pets and "rare" boss battles makes me a little anxious. You just know those are going to be in high demand if/when it's released. Since it's all just being considered and the fine details haven't been hashed out yet, the unknowns are unnerving.
How hard will they be to find/obtain? Can you get ganked mid-boss fight and lose all of your progress? In what way will epic quality pets be introduced? Will there be wild epic pets to catch or will battle-stones from dailies be the only way to upgrade?
And there are so many other questions! For now, I'll just have to sit tight and wait.
Overall the interview was very informative, and shows how much care and thought is put into this mini-game and pets. I love that they implemented gender in with breeds "just in case" lol. If breeding pets becomes a thing, I hope it's not too complicated.
Can't wait to see some skin/model updates and puppy pets in future content patches. :)