OK, I just heard something from Nikki.
The advice is you can just turn up as usual, as it is arranged.
Tables, chairs and possibly some extension leads should be available.
Without Nikki the bits she brought along will not be available, so bring what ever else you need.
No drinks provision, so bring your own supplies: bottled water or
whatever & tuck if you wish. The cafe will be closed at that time, but you should be able to pick something up easily before arrival.
Be interesting to see how many are there, given little in the way of announcements. Something to work on for the next one.
See you there, hopefully.