Unless I am mistaken, they have never mentioned Great Britain on their official website or any press stuff, it's only been unofficial sources that have used that term. They themselves have always said Universal UK project. I don't think they'd call it Universal GB because it's a bit offensive to exclude to Northern Ireland like that (for the Americans - Great Britain refers to the island that contains England, Scotland and Wales. The United Kingdom is the sovereign nation that consists of England, Scotland, Wales and Northern Ireland). The term Great Britain is not used commonly, I'd say I'm from England or the UK.
They won't call it Universal Bedford as no one globally knows where Bedford is. They won't called it Universal London as that's offensive to Bedford, as Bedford is definitely not in London and the whole press conference we saw yesterday was about how good this theme park will be for Bedford and how they want to respect the local area. I'd say it will be Universal UK! Has a nice ring to it.