We just got back and they are not allowing riders in the front. I am not sure for how long, but that's the way it is for now.
Another thing we noticed was: all but one monorail trip we were on (out of about 50+) they had two employees in the front cabin, a driver and another CM. Not sure for the reasoning behind this, we didn't ask. But it was very noticable if you are an avid Disney visitor.