Some more tweets from Wilson:

I've written 8 issues of Wonder Woman thus far and I have only juuuussst gotten comfortable enough with her voice to start incorporating more 'internal monologue' captions (formerly thought bubbles).

It's so easy to overdo the gravitas with a character like this that I've been finding other ways to imply her thoughts. But I think I'm finding a happy medium now.
Q: I want to interview you about how your internal conversation has shifted, Ms Marvel to WW.

A: IT'S SO DIFFERENT! Ms Marvel is constantly chatting to the reader in a way that almost breaks the 4th wall. Wonder Woman is a lot more somber. No, somber is the wrong word. Restrained.