It is highly unlikely that Tucker is returned. Highly Unlikely.
However, for posterity, here is my take on your OA situation next season.
2000 Born players:
Dellandrea, Ty - drafted by Dallas 2018 1st & signed
Tucker, Tyler - drafted by St. Louis 2018 7th & signed
Busby, Dennis - drafted by Arizona 2018 5th
Lalonde, Owen -
Roberts, Connor -
Wismer, Jack -
McCourt, Riley -
Bangs, Ryan -
Yule, Quinn -
Morrison, Evan -
2 guys signed that are very likely not returning, and 8 guys that *could* return. I believe that you are in the first year of a two year window, so if next year is another go for it year, you would definitely keep Tucker if he was to be returned. There may be one or two guys here that you can trade in the off season to recoup a few picks, but probably not much if you are keeping your 3 best OAs for another run.