I'd be shocked if they used it. Too much luxury tax implication. If they find someone they like out there, somehow, they're more likely to cut Oni to bring on that player. (But I can't really see this. Despite Oni's offensive weaknesses, he still bring real value in just hustling, effort, smarts, and athleticism.)
Odds are that the roster's set now (at least for a couple of months).
Yikes ... my summer-league "crush" Ish Wainright was just waived. I had advocated trading him for Oni earlier, but with Fitts in the 2-ways slot, it seems that we now have less need for someone like Wainright than we did earlier