Originally Posted by Mr. Dent
"Edgar Wright's territory"?? It's not his movie, it's Marvel's movie and they can use their characters however they like. The fact of the matter is the Ant-Man movie is going to have very little hype on its own; by introducing elements of it in more popular titles it will gain more acknowledgement from a GA who have never even heard of Ant-Man or The Wasp/Jan.
Now, we know AIM will play a pretty big role in IM3 and possibly Ant-Man, that's the thread that connects them. If Jan is involved with AIM (and by extension Hank who is probably an AIM employee as well) it would make sense for her to be in the movie at least.
And this school of thought that some people have that character making cameos in a shared universe somehow detracts from the movie is silly, especially when those characters aren't even established heroes yet and can basically just act as easter eggs in those films. This is the same reaction people had when that rumor about Strange appearing in Thor 2 surfaced.
"Edgar Wright's territory" was poor phrasing on my part, but the point is that Jan definitely belongs to Ant-Man and/or Avengers primarily, and should therefore debut in one of those franchises; to have her first appearance in an IM movie doesn't make much sense.
But again, more importantly, in that trailer scene, Szostak is definitely *not* acting the way Janet Van Dyne would act towards Tony Stark, period. *If* that turns out to be Janet, and she enters the MCU by sexually assaulting Tony Stark, I'm opting out of the Avengers franchise entirely, because it would be headed down the wrong road completely.