Well, if you really think about it, telling people that you're the Invisible Woman is a tactical error, same as turning invisible right in front of someone. Turn invisible BEFORE you enter a battle.
I've never cared for the Yellowjacket guise, as a design or whatever. I'm not counting down the episodes until Pym dons it. I liked the little nod to it with his Asgardian armor, but I'm happy with him as Ant-Man/Giant-Man.
Carol Danvers should be an interesting component to the team. She would add some "legitimacy" to them as she is an active duty U.S. military figure. Captain America technically was, but was 70 years removed and presumed dead. Iron Man has ties to SHIELD, but he often disagrees with them and is not a SHIELD agent. Hawkeye is a SHIELD agent, but had been considered a rogue agent, and his defense of Black Widow (who is considered a HYDRA spy) may not aid his ties. Danvers, however, has a perfectly fine record as a military woman. Especially as Maria Hill goes through on her actions to try to force the heroes to register, Danvers may become key.
Plus, it will be good to have another female character for Wasp to talk to, especially as they're already friends. She and Natasha don't get along.
The show many finally get to pass the Bechdel Test - having two female characters that talk to each other about something that isn't a man.
We've heard this is "the cosmic season" and as that will be kicking off immediately, it may not be too long. Her powers manifested in her intro episode, so she probably has been undergoing some secret training for a bit. I am surprised that this show has her wearing her original costume, at least initially, instead of the version she has worn since the 70's and 80's (that has been seen in her appearances in "MARVEL SUPER HERO SQUAD" as well as the 1990's "X-MEN" show). But they made it look great and I feel it is a great move, since Mar-Vell is in his Ultimate design, and thus, it doesn't seem "inspired" by him here.