We were there yesterday and it appears the rut is over - none of the bulls we saw had any cows and the cows we saw were unaccompanied. On Winslow Hill you're almost guaranteed to see elk because they're so habituated to humans, but the number of people made it really unpleasant (for me at least). There were a number of 15-passanger vans hauling people around and lots of cell phone-photographers.
I believe it was 2014 or 2015 when a new viewing area was built on Winslow Hill with a larger parking area and some areas within sight of that closed to foot travel.
This year I've seen quite a few elk in the meadows along Bennetts Branch between Medix Run and Driftwood and some between Driftwood and Sinnemahoning. If you want to get away from people look at the Quehanna Wild Area on GoogleEarth. There are elk in the area; they're wild and not habituated and thus harder to find and photograph. Check some of the food plots on SGL 34 and the Moshannon State Forest that are shown on GoogleEarth and the Game Commission's maps (which are not user-friendly) -
http://www.hunting.pa.gov/bof/huntmap/index.html