The DCS has too large a scale for ground vehicles. It may be interesting to march for an hour a couple of times, but then it gets boring. Plus working out the maps, yes, we have a cool Germany, but that's it.
Of course, we want to have a game where the planes are designed at the DCS level, there are cool tanks, and also that the infantry is trained, Planetside 2 is at its maximum. But I think we have to wait another ten years to get to that point.