All things are possible for a 5 star QB out of high school, before the first D1 college practice, before any spring scrimmages have occurred, or even a single snap of the football. Lots of variables involved. Whether he will be a first round draft pick hasn't been decided yet and there is a lot of work to be done before that happens, by Dylan, the coaches, and the rest of the Nebraska team. Getting a quality QB coach might be beneficial to that mission.
Having said that, I sure hope so.