Whether their should be a Marvel character who gets their own off shoot, stand alone film, is really up to each fans sensibilities , and fans are far from united in that question.
While I can't speak for every fans own preferences and feelings about the potential stand alone/out of continuity films , I can speak for myself.
I can say, from the perspective of someone who grew up well before the era of CB cinematic universes, and someone who isn't wedded to the concept that " everything ,must always, be connected, and part of the same continuity" , I would be interested in seeing how Marvel Studios , in addition to a great Director and greater writer, would approach a stand alone , alternative universe , story with one of their vast libraries of characters.
If they have the writer and the director who have a great story to tell , which could make for a truly compelling film, I certainly wouldn't be against it .
For me, the story , as with a shared universe story or stories ,have to be good ,and executed well.
That would my concern.
Ironically, I think Marvel Studios is really not in any creative position to do a stand alone film at the moment given all of their recent quality issues with their current continuity.
So , I think any stand alone film would have to come after they get their " creative quality house" back in order.
But in principle, I'm not against the idea of a one shot , Stand alone , out of continuity , feature film , if that possibility ever arose.
