Yes, and I think she will be eventually.
Her ideas are becoming more and more mainstream, and as more boomers who are afraid of "socialism" die off and are replaced by minorities and left-leaning white millenials, she should have no problem winning.
Also, the suburbs aren't going to rapidly swing against her because by the time she's running for President, they'll already be Titanium D if current trends continue until then.
The Suburbs trended D because they weren’t too left wing on economics, if AOC becomes the nominee that will no longer be true
The Suburbs would on social issues right now cause right now both parties support policies that benefit the Suburbs . With AOC that will no longer be true
The suburbs are getting more and more diverse, and more educated as well.
They didn't vote for Clinton because they particularly liked her economic policies, they voted for her because they particularly hated Trump and his personality, with dislike for most of his policies probably being secondary.
Look at how well Beto did in the Texas suburbs, and remember he ran on abolishing ICE, Medicare for all, etc.