In light of that we still have a way to go before a final decision can be made on the new skills, and that there's a lot of other very neat improvements in the source code ready for V12.11, I have made the decision to delay the new skills until V12.12, so that I can get these other improvements out sooner.
Resizable terrain will still be coming in V12.11, and there's a lot of other neat improvements too (see changelog in first post). In all likelihood, this doesn't mean you'll be waiting any longer than before to get the new skills - it just means that while waiting for them, you'll get some other nice improvements in the meantime.