Trey will be tested several times a year by his oncologist. If anything shows up it will be addressed immediately. His involvement in baseball could be put on hold. Hopefully nothing shows up. But after stage 3 cancer it is not something that can be ruled out. Any GM offering an multi year contract to Trey has to evaluate the risk of some kind of recurrence.
Does it depend how he profiles defensively? If he's 2B or 3B, that's a harder sell as #1, very easy sell if he can stick at SS. I like Dru Jones for his profile of his dad pretty much, maybe with more speed.
I think what this shows is that the price for this type of player is falling dramatically. Peralta is probably more in line with what Mancini could expect in an extension. Schwarber has shown a bit more power than everyone on here besides Trumbo. That, and his HR tear this year, is why he could receive a 3/60 type deal (though I’m skeptical).
None of those comps are really that similar to Trey because he has the unique situation of having stage 3 cancer and went through chemo. Any GM offering a multi year contract must include that as a risk factor which may shorten the number of years a team may want to commit guaranteed money.
That said I think Trey's value is low right now because of his second half of 2021. With a normal off season of Trey being the worker that he is should allow him to have much better 2022.
I am very much in favor of signing Trey to a two year contract or a one year with an option year. That way he is not a rental player this season and if he has a good 1st half that probably raise his value at the deadline or even over next winter.