I think I saw Mackey say that Shelton said the rotation (and perhaps final roster) would be set within 24 hours, so I suppose we'll get some clarity by tomorrow.
My only hazy guess is that Contreras definitively to the bullpen might be the domino that was needed for Jones to be given the chance (beyond the plainly obvious that he has earned it). If that move doesn't happen, then it's even easier for them to waffle about how roster considerations etc.
That's still possible now, but it's a lot harder to point to Falter or Priester as needing spots, even if the former is out of options and the latter showed some flashes. I think the same can be said about Ortiz, who has probably earned a spot due to the depth, but with the walks still being a slight concern, could be better off being sent to Indy with a clear agenda to work on.
Maybe a kind of "compromise" of sorts is in the cards, which I say based on the assumption that no one in their right mind wants Falter on the staff. Jones makes it, but so does Falter as the initial 5th starter, someone who is easy to replace with Ortiz, Priester, or a stretched out and performing Lauer or German.