Seeds 10-12 are the only ones in play now.
Scenarios (assuming UW loses to Purdue for simplicity):
NU wins, PSU loses, UW loses: #11 seed (unless Maryland is #2, then #10 seed)
NU wins, PSU loses, UW wins: #10 seed
NU wins, PSU wins, UW loses: #11 seed
NU loses, PSU loses, UW loses: #11 seed
NU loses, PSU loses, UW wins: #12 seed
NU loses, PSU wins, UW loses: #12 seed