Personally, I haven't used Bedroom, Kitchen, or The Slopes in a very long time, so nothing to lose in my case. I use Slate edits and just build everything. Being a building game, I'd imagine this is the logical evolution. Maps are just a throwback to the old days of Blockland. I might miss a couple of the maps just because of nostalgia (GSF maps, for instance), but I welcome something new after seventeen-odd full versions.