We were there this past Monday and saw them both in the same room. We had a fast pass, not sure if that matters or not, but they were in opposite sides of the same big room - nothing between them to separate.
Pictures were taken with each princess separately, but in the same room, by two different photographers. If by split you mean not pictured together, then they were split, but they were still in the same room.
I noticed that the standby line was around 130 minutes and never over 200 minutes any of the times we walked by PFH, which I thought was lower than what I had read about a month ago.