Nope - they're actually making it impossible. The way they're making it so much lower-resources to run is (partly) by removing all back-facing polygons, so now the map rotation goes from "possible if they got around to cleaning up the backs of things" (someone on the discussion thread said they'd flipped the camera in LoLReplay just to see if it was possible, and it was, though it didn't look quite as nice) to "pretty much impossible without as much work done on the backs as they're doing now on the fronts, which will also kill low-power computers," because looking at things (walls, trees, assorted decoration objects) from the other sides will now make them invisible.