Wikimediauk.org, the first hit on a google search for "Wikimedia UK" (with or without quotes) still refers to Wiki Educational Resources Ltd throughout, implies that one can still become a member / supporter of WER, that WER is the organisation with the license from the Wikimedia Foundation to trade as "Wikimedia UK" and use the Wikimedia Logo "and other devices".
Obviously this is all out of date and now factually incorrect. Even if a new website for Wiki UK is not ready yet, the wikimediauk.org domain should point to the pages on Meta (or wherever the up-to-date information is)
Also, I'd like to ask for an update on the legal status of WER.