I do not think he will, but who knows? If Tua is not ready to go next season, will a GM in the top 6 want to put their #1 pick on layaway? Most of those guys are in trouble anyway. They could convince themselves that a healthy Herbert who can play in 2020 is better than a gimpy Tua. Most of those GMs are on the hot seat and taking a flyer on a player like Tua that does not pay immediate results could be a death sentence--the Panthers might be the only team in the first 8 picks that has a patient, long-term plan.
I think (this is January and the draft is in April--so what could happen to change things?) that Tua drops and Herbert rises.
No matter who they draft, unless it's Simmons in the 1st round, he'll get a shot. UDFA have become superstars so you never know but it's always a long shot. Even he contributes and plays in rotation or something, that's good news.