The requirement is 5 active plus 3 reserve (but reserve, or course, means active if the US needs you, so people need to consider that.)
However, with the scale of the cuts that are being made in the Military, and in particular, when one factors out the 'fixed' cost in the DoD budget (pensions, locked in programs, healthcare for Vets), the real cuts on the active side are going to be somewhere between really big, and huge.
I would not be surprised over the next few years if new 01's and 02's are offered 3 and 5, or 3 and 6 instead of of 5 and 3 (AFTER they Commission) . Looking at the numbers and the politics, I would bet its more likely than not that there will be very large cuts in ROTC, and that SA grads are going to lead the active side as junior officers, but also be made offers to increase their total commitment, if they can get them off the payroll, but keep them on the team, and trained up.
Just a guess. We did this after Korea.