We said with the demo announcement we'd do a full rundown of changes included in the demo when we get closer. Well, we're closer.
To re-iterate on the announcement post for those who didn't see it, not only should this give something to hold everyone over until release, but if we've messed something up, we'll have ample time and feedback to adjust it as we go. This will be especially useful for balancing feedback; there have been plenty of balancing changes which should be pulling the mod in the direction we want, however the exact numbers are certainly still up in the air, and the demo will give us a good amount of feedback to adjust from the current new baseline. There are a ton of changes being made in 2.2, probably more than in any previous version (including 1.0, and the huge jump between 1.3 and 2.0), so the more feedback we can get in one GC as a testbed, the more easily we can make changes without them already being embedded in ~19 other scenarios.
Here's the basic overview of what to expect compared to 2.1, as well as a bit of a projection to the full 2.2. Keep in mind, everything (especially in the full 2.2) is subject to change. Content may be added or removed as time and priority allow, especially when it comes to additional units.
To read the full changelog, click here.