Novel 3, which is really a radical re-imagining of novel 1; YA or not?

That’s the question I’ve been asking myself lately. I’ve spent much of the last month plotting and planning a novel which grew out of my first attempt at novel writing.. The thing is, is the fact that the novel revolves around a queer young person’s first year at University enough to qualify it as YA? The novel it sprang from certainly wasn’t YA, and the image which kicked off this imagining certainly wasn’t YA, so while it’s a teenage protagonist winding their way through a specifically teenage life, does that mean it’s tied to a teenage market?