Not to get ahead a year, but next years rotation will probably look a lot like this years rotation, to be honest. I'm sure the Jays will go big game hunting for Skubal, but if that falls through most of the Jays upcoming FA SP's just love the Jays and probably won't be hard to re-sign. Gausman obviously, Bieber has raved about the Jays org, and Scherzer if he's still good and doesn't retire also loves the Jays. Lauer might be the only one who would run for the hills, due to his arb experience.
Either way though, Cease, Yesavage, Ponce and Berrios isn't too bad of a starting point for building a rotation anyways.
That's if there is any MLB next season. :(