They will now submit them to the PEB so they can review them. This process is new as of about 6-9 months ago as they use to wait until the PEB requested them, which caused MEBs to last even longer. So instead, they just send them over to the PEB once they are complete. Keep an eye on your ebenefits for a "closed" case and then wait roughly 15 days and then you can call the VA and request them to email you the proposed rating that they submitted to the military.
Generally speaking, the PEB is still determining if you are fit/unfit right now (or at least that is what your PEBLO will tell you) because he/she has yet to reviewed your entire packet. Once they get the VA ratings and have time to look over your packet/records a decision will be determined. Just for reference, only about 2% of Army personnel that enter a MEB are found fit unless they fight to be found fit (this information is coming from several source throughout my post MEB personnel). Also, from my understand the Army is the only branch that has to determine you fit/unfit one you enter the MEB. All other branches have already determined you're unfit once you enter the MEB.