By chatting here and there, I have a info that "all changes they mentioned to add are in closed beta already for sure, and seems to work". So except they have problems with one of exporters (HTML5 may be pain here, as that one always was the least loved), I hope they have no problems with implementation, if that info is legit. But maybe they're adding some another changes too (we already know, that file format will change in 2.3, maybe that's the cause of delay?).Some information or showcase in actual use could be nice. Hopefully they don't have problems with implementing updates, or internal problems from organizing the workload between employees
Without any official info, we can just make a fake-guessing, and I also don't want to spread any fake news, so I hope that they will finally tell us something if update didn't came before end of February, as that will mean start of third month of delay.