@Rowllan, I agree that we should be allowed to play as a dog or cat, but @jpkarlsen is correct in that it has been confirmed that the pets will only be directed by our other Sims' commands and will not be playable. ☹️
Most people wanted their Sims to direct the dogs and cats because it is more unpredictable and makes for more challenging gameplay. But, playing as a dog or cat is more immersive. Therefore, I think they should allow for both styles of gameplay. If a person doesn't want to play as an animal, then they can just control the human Sims and make them direct the pets instead. This way both styles of players are happy, instead of just one style of player! 😇 Sadly, they chose not to do this. 😢
I'm still looking forward to the pack, though. 🙂 Pets are always my favorite expansions to the game (followed by Seasons/weather), and I really enjoyed TS2's version even if the pets weren't controllable. But I still think TS3 had it right! Being able to be the pet was so much fun! 🐶🐱❤️