This season, the Yanks lost a major chunk of sizzle when Clarkin, Hensley, German, DeCarr and others missed time. And now that it looks like Severino has graduated, the next shiniest object on the minor league pitching front could be Domingo Acevedo.
Domingo, who is 21 and will turn 22 in Spring training, is currently dominating the NYPL (era 1.81, more than a K per inning), which has been, primarily, a college league over the years, so his age is right on for that league. Though he's thrown 102 in games already, he's clearly not going to move like Luis did, who's only about 4 months older than Domingo.
Unlike a lot of Dominicans who sign at 16, Domingo didn't sign till he was a few days shy of 19. So he really hasn't been in the system very long and his stuff has pretty much let him move through the DSL, GCL and now NYPL in just two years. He did start this season with Charleston, but got hurt, though if he keeps doing what he's doing, he could start next season at Tampa.
He probably only has 1 more start left in the regular season, then one or two starts should SI make the playoffs. Then he'll probably get more innings in Instructs, and should be ready for full season next year.
People might want to compare Domingo to Severino because he's coming after him, but the better comp is to Dellin Betances because Domingo is 6'7" and still filling out. Hopefully, the Yanks will keep him a starter. As you'll recall, Dellin was starting to rock as a starter again when they threw him into the pen.
In other farm news, the Pulaski Yankees are starting their playoffs today and they haven't named a pitcher, yet. Simon De la Rosa, who is 22 and 6'3"185 has an even better K rate than Severino, and may be the pick to pitch. He's another kid from the DR who didn't sign till he was around 19. So he probably is a little old for league.
So while we don't quite have the next Severino in terms of meteoric ascent, we do have some other young pitchers who are harnessing stuff and dominating.