Based on the news on reddit, for US they are already restocking the Stores and peoples on waiting lists are getting calls. The dates on boxes (there is one on transport box and then on outside and inside seals) show it was made about 2 weeks ago.
As for the new production runs it is not so straight forward.
If you are LEPIN and want to catch marked by cherry picking and stealing certain sets, you could prioritize that one.
On the other hand, LEGO at this time is making other sets, sets that go to retail for the kids for Xmas and slowly would start with 2018 sets. Those are already bought by the retailers based on the wholesale agreements. Going full on MF production (like LEPIN can) would endanger all these contracts. And I'd say, with the complexity of the production run, per hour on production line (stop, clean, set up, run) multiplied per numbers, you sell hundreds times more of the smaller set, the MF is not so profitable.
So there had to be some tough decisions on how to sneak in such big production into existing plans ...