Join Date: Apr 2009
Location: Bye Delta
Programs: AA EXP, UA Silver, HH Diamond, IHG Plat, Hyatt Plat, Marriott Titanium, Nat'l EE, Avis PC, Hertz PC
Posts: 16,632
Yes, once your status changes, you will earn 100% bonus miles for any further flights.
But that wasn't OP's question. The question was for the actual flight that puts you over 50,000 MQMs, what will you earn.