This "news" is meaningless, especially when they've been so cagey about his injury, and came up with the bizarre "dead arm" explanation after shutting him down last year after a few rough outings in the minors.
There is no real news until he's pitching an inning or two at one of the full season minors affiliates and throwing breaking balls to live batters. The rest is just the tiny sliver of actual information that's making its way out to the press that doesn't tell us a thing.
Good news is he's not some missing piece. The rotation's off to a good start with later rounders like Irvin, Parker, and Lord.