Just my two cents on ucs- According to what I see in shops in Europe, most popular sets are sub 50 eur with 10-20 dominating and being often out of the shelves. My point is that lego certainly respect afol community but their bread and butter are still kids and their parents not so eager to spend 300eur and more on bricks.
Same MF that we now want reissued was being sold for way too long and I saw it on multiple sales. Market for ucs is not big, i.e. is super small and hence lego now trying to push playsets- something richer kids will actually ask parents for a present instead of super big dust magnet set that for what is worth could be glued when assembled. Or even bought from Chinese as a knock off for much less which from distance appears almost the same.
I have a feeling that even if they push mf it will be more for marketing purposes (like technics Porsche I see now on discounts and in huge quantities all over shops in ch begging to be sold) as looks super fine in magazines, but will still struggle to be sold out in any decent quantity.