Frenchy keeps referring to today as practice for Thursday (for Keuchel).
I think they wouldn't have pushed Soroka all the way to Sunday if it was truly up in the air.
And I think they don't want to start Folty on the road, so it's likely an unkept secret at this point that its Keuchel/Folty/Soroka, in that order.
Aggression with prospects is fine, but being stupid is not. There should be a way to find a happy medium between a Pirates like idea of being overly cautious with prospects and going stupidly fast with prospects.