One year, one week and one day have passed... still no word from Ashley about any of this. I think this means we can all forget about that thread cause it's useless. C3 will come out sooner then any of this will get to C2.
Unfortunately this seems to be a bit of a case now. But then again it's somewhat understandable given how, apparently, "the community" wanted MP the most, plenty of time and resources were spent on it and now barely anyone uses it. It's unfortunate, but hardly surprising that Ashley seems to cherry pick what he'd like to implement.
C2 has a good deal more small extra features than CC did, even some things I had made for CC as plugins - this is really cool. And yet many of these things seem a bit like "check mark" features - yeah, we got an editor, yeah, we got tilemaps, we got this and that. Not all of it works right, not all of it is made with actual usage in mind, which is a shame. Perhaps getting some talented individuals to fix these things up wouldn't be such a bad idea - a single person can only do so much and have so much inspiration for a given thing.