Hi
@Phroobar . I haven't been on the Wonder in 10 years. So I'm not current on what's regularly offered. But here are just a couple things that you can't miss.
1) The live shows in the Walt Disney Theater. "Dreams" is DCL's signature and very first show. It literally changed how the entire cruise industry viewed on-board entertainment. It's not my favorite show (and I can share some reasons if you're interested), but it's a true classic and you should see it. "The Golden Mickeys" is an award-style show and this
IS my favorite show. I even have a picture somewhere with Ensign Benson. Definitely go see this. (Hopefully, they've removed the Covid-era changes by the time you sail.) The Wonder also has a Frozen spectacular, but I haven't seen it.
2) Tiana's restaurant. Tiana's Place is one of the rotational restaurants and I've only heard great things about it. I haven't been able to get into it yet, but my (ingrate) daughter went on the Wonder without me and she absolutely loved it. The live entertainment during your meal is great. (And you can ask for extra beignets!)
Things to avoid -- Ensenada. It's been a while since I was there, but it was a miserable PIT when I was there. Do not go into the town on your own. Unless you book an excursion that will take you outside of the town, just stay on the ship. There was nothing but squalor and aggressive panhandling around the cruise port.