Yeah I suspect they're going to take their time with Steele, probably do one rehab outing at each level. Kick that process off next week and you're looking at early June.
The other arms we're waiting on, pending any setbacks:
Phil Maton - Tonight
Ethan Roberts - This week
Palencia - Next week (has a bullpen tomorrow, I'd presume a rehab this weekend)
Harvey/Thielbar - TBD but sounds like weeks not months