Jest Chillin
Member
That is only a problem if you assume they are unwilling to adjust that unwritten policy and do a prequel or something. I don't think it would be very confusing really. Also, it is a problem of their own making. They had plenty of plot room for a BW movie in Phase 1 or early in Phase 2. Still do, all they need to do is have something from her past chasing her down that she needs to go deal with. Doesn't have to be a massive world wide threat, just an immediate threat to her that she has to deal with.
I don't think they would be willing to throw in a single movie that doesn't follow the timeline. They're too deeply invested and changing plans this late is riskier than it needs to be. With her entire history being released at the end of TWS, I don't see why she would take on anything on her own. And if there was a larger threat keeping others from helping her, she'd be more likely to help with that than go off on her own, especially as there's no longer a central SHIELD to give her orders otherwise.
I mean, at the end of the day, they could do anything. I just don't think there's a lot of options that would be worthwhile additions to the MCU.