Michigan's first round of 2013 offers go out tomorrow and I expect they finish 2/3 of their class pretty soon afterwards.
Austin Hatch is expected to get an offer and end his recruitment pretty soon after.
Michigan will also, according to UMHoops, likely offer atleast 3 PGs tomorrow that they have a reasonable shot at. Flint's Monte Morris, Indiana's Demetrius Jackson, and Detroit's Derrick Walton.
The other position left is a PF or C for the 2013 class and I think Michigan would be wise to wait a little here. Their board isn't expansive at that spot and I think they could afford taking their time.