I mean, if they're going to have her be the "new face" of the Avengers, they better nail it in her standalone movie because so far, the trailer isn't making me very optimistic. Being the strongest strong to ever strong isn't going to cut it, because it can't be a muscle contest at this point. People have been following the MCU for ten years now and you can't just have the shiny new newbie become the leader because "ZOMG SHE'S SO STRONG".
And it's not even because she's a woman and that I'm a horrible sexist who hates women in positions of power. If you look at the DCEU, if they decided that Wonder Woman was going to be the leader of the Justice League, I don't think most people would have complained since she's pretty much universally liked (to the point some will even say she's the only good thing about the DCEU). I don't care much about Black Widow, but she's been there since pretty much the beginning of the MCU and she's more than earned her place as a potential leader. Heck, if you want to take a "newer" character, Black Panther would make more sense too since he's popular, he's a king, and he's got this amazing nobility and sense of justice about him that would make him a great leader as well for the Avengers. Either way, SJWs are happy because a woman/a black guy is leading.
Like, I don't know, maybe her movie will be a lot better than it looks and I'll be fine with her becoming the leader, who knows. I mean, she's a former officer and U.S. Air Force fighter pilot, so why not. But ultimately, the point is not that she's not competent enough, the point is that I just wish there could be more to her than "she's the leader because she's got the biggest muscles and the biggest superpowers". It's a disservice more than anything else, because Steve Rogers didn't become a leader because he was strong. He became a leader and Captain America because he represents what the American man has the best to offer.