Yep...pretty random question, and unlikley anyone here knows for sure (unless we have someone from USNA Supply lurking here -- I suspect they are already placing orders for I Day issue)
Someone closer to the Yard may be able to weigh in...but it appears to me that USNA issue is essentially consistent with Fleet issue. I haven't followed the NWU drama, but would expect that USNA issue would be what the Fleet is wearing (and perhaps with a little forward looking ).