Roster as it stands:
Guards: Kemba, Langford, Edwards
Linebackers: Smart
Wings:Brown, Tatum, Hayward, Semi
Bigs: Williams, Theis, Kanter, Poirier, Yabu, Wiliams
That's 14 slots, so we have at most one slot left. And that's assuming Waters is on a two-way, he could make the team as well.
I imagine they'll probably leave that roster spot open for now and see who shakes loose, I'd imagine they would be looking at a perimeter player for it.