Honestly I really hope that colony building looks something like this:
It might be an unpopular opinion, and I might not be the most experienced late game player for KSP 1, but I hope that at least the first colony is more hands-on than just plopping a ColonyMaker2000 on the surface, and watching it unfold into a colony. I can't imagine that was how it was ever going to work, seeing as they have physics and all, but I do hope that there is some assembly required. I understand that in the super late-game it would be ridiculous to hand build every colony, but the video makes it look like so much fun. I really like the idea of using sky cranes and rovers to dock modules (although modules on wheels aren't the best). My point is, I really hope the colony building mechanism is more than just a build and place.
Also wondering... how would landings even work? The trailer shows elevated landing pads... with no gantry. There's no rover access, ladders, docking mechanism... how do you transfer kerbals?