I doubt it. Sony probably knows that unlike when they decided to put a DVD player in the PS2 to drive DVD sales, that the physical movie market is now a nitche market best served by others. So they will save money by putting a drive that costs marginally less which will mean that the console upgrade will stay in the red for a little less time. Though it is not like the PS4 Pro isn't made to drive electronic sales elsewhere, the machine seems to be tailored to help them sell TVs. Especially for those who graphic fedelity means everythig to them, and making it so the machine "gimps" the games according to what display type you have, actually the move was to help games run smoother on lower TV's. So those graphic enthusist that want the best the console has to offer will be more likely to upgrade not only the machine but their TV as well.
It isn't like Sony is abonding the 4k HDR movie crowd but they probally have access to better numbers then we can get our hands on, but it seems they are betting on digital distribution of movies through their store which has the highest chance of growth for them.
The other is about what redisgns are usually for, this console is an upgrade so if they where going to put the drive in the system they would have done it now, a redesign is about cutting costs making the system cheeper to make for the company and demand probally see the drive dropping in price that radically compared to a regular BR drive since disc based media is on the way out. (Which can be one of the reasons why Nintendo went with carts also Flash drives are problally more prevelent then disc based ones now which means they are cheaper, but that is another thread.)