I read the article on the monorail budget from bombadier. The Las Vegas Monorail expansion could certainly be where the line items are coming from. As much as I'd love an expansion, I don't see it happening. At best I think we see train replacement.
I'm still in the camp of skyliner is the wave of the future. I think the skyliner fits the transportation patterns of wdw a bit better. If you need new routes, skyliner is the cheaper way to go. I do think we will see new trains on the existing lines.
The curiosity for me is the bridge to the GF. That was a surprising move. I suppose it works in with the entrance project, but I can also see it working into a prolonged down time of the monorail. If you are getting new trains, it shouldn't take too awfully long to get them on the tracks, and have minimal down time. However, if you want/need to work on the rails themselves, the resulting down time could be enough to warrant the cost of building the path that serves the rest of the monorail loop resorts.