These prospects are to be signed in the summer 2023 if Detroit wants to keep their rights :
Jack Adams
Gustav Berglund
Albin Grewe
Robert Mastrosimone
Ethan Phillips
Oscar Plandowski
Pasquale Zito
Only the two in bold are going to have a chance to be signed I think. It's a shame for Grewe, I thought he was going to be a good one.
I think your guess is correct in terms of guys with a chance. Curious to note....
Mastrosimone, Grewe, Phillips, and Berglund are all from Yzerman's first draft with the Wings. Effectively, I don't think his fingerprints are really on these guys. Maybe Mastrosimone, and he's showed well this season, so there's a chance if he's still interested in Detroit.
Adams is from way back in 2017, has been in undergrad for 6(!) years, and is like 30 years old.
Plandowski and Zito are from Yzerman's 3rd draft. Plandowski has regressed each of the last 3 years, but Zito remains a borderline interesting prospect.