1. Will all-gender bathrooms exist at EAG London?
As I understand it, the UK government has mandated that new buildings be constructed with bathrooms that are either multi-stall and single-gender or single-stall and all-gender. In the past, CEA has rented event spaces with single-gender bathrooms and put up paper signs designating them as all-gender. Will the new UK law prohibit CEA from doing so at EAG London?
2. If not, will trans participants be allowed (under UK law) to use single-gender bathrooms corresponding with their gender identity?
You can do this in parallel to having this post publicly; in fact, you can even email them to notify them that this post exists! However, I wouldn't expect that they'll see this question on the Forum by default. There's a lot of content on the Forum, and the EAG team is extremely busy.