I was looking closely at the new paint racks at my nearest Hobby Lobby yesterday looking for a certain color. I noticed that while the military colors are now missing, there are new colors in the general purpose colors section. Seems funny that they would be bringing out new colors if they plan to discontinue enamel paints.
I know many of my modeling friends have transitioned to acrylics. Maybe the sales of the military colors have dropped off. I do some car modeling and some airliner/civil aircraft where I need gloss finishes, and I find it easier to get a good gloss with enamels, so I'll stick to those for gloss colors even as I have to switch to acrylics for military subjects.