No, all three colors are new patterns. They are not one replacing another.
If you watch the 2015 V-Day parade, you can see all three of them. Different marching formations have different colors. If you check each formation's background and region of deployment, you will realize that the color match their region. In the parade, the yellowish one was wore by the first two troops from the north theatre command where terrain in autumn and spring is brown/yellow, the green was wore by the 3rd troop from the western theatre command (Chengdu region where it is green all year round). I suspect that the troops have more than one colored camo dresses to fit different seasons. For example, the troops in Tibet would have both green and yellowish, or even desert patterned dress as Tibet's terrain need all of them.
However I don't understand why soldiers in the same unit wearing different colors in the same time.