A lot of the really good deal (but expensive) training blocks and programs will probably go away. We don't send anyone to airborne/dive school for summer training anymore due to $$ and the rumor mill was spinning that money was the reason there were so many cutbacks on aviation cruises, etc. last summer.
The good-deal 2 week YPs of my youngster summer might come back if they can find away to make it actually save money (because apparently it didn't) and I'd imagine further cuts to international summer programs like LSAP and LREC. Every year they cut a couple of those anyway once the budget comes out.
Obviously, what I posted is just hypothetical. Good training will still happen, and good MIDN will still get produced. Just with less fun.