Here's my view on the most recent update.
Hub games, it's more of a gimmick than a well thought out survival games map, it is the hub with one central pillar in the middle to act as something of a cornucopia. It was built as a hub, not as a survival games map, I wasn't best pleased when they added lobby games initially, but at least I can see there were a large number of major differences, heck only about 1/3 of that map was part of the old lobby, the rest was brand new, whereas the hub games doesn't expand on the hub, it links together some of the areas through tunnels in the mountain, but that's it.
Atlantis, Wasteland and Enchanted forest, they were built as PMC projects not as survival games maps, I'll be talking about wasteland as it's easiest to discuss, that map looks fantastic... from afar, using renders or a shader pack, when you actually get up close with it, the terraforming is messy, there are holes you can fall into etc. That's because it was designed to look good, not to be played on, it was designed in order to get as many "diamonds" as possible on PMC.
Excavation zero, as far as I'm aware, the guy who built it's been around in mcsg for a while, I know that because he messaged me back whilst I was still building Wyvern's to offer some help. This is good, it means he has at least some idea of what makes a good map for game play.
Turbulence, I haven't played this yet so will not be talking about the map itself but I'm incredibly disapointed that only one fully community map was put on. One map out of six was actually posted on the forums for the community to look at. Fantastic, that's just discouraging for map makers. People have asked me why we posted our (Discovery works') latest map elsewhere, this is evidence for our answer.
Six maps at a time, and no others removed? Or at least, not too my knowledge, is that not overdoing it somewhat, the last map update wasn't even that long ago.