I live in Europe and special can't use on German-Deutch, Z - Y are on opposite place.
For my keyboard US layout was necessary because PBT keys, but anyway I would use US.
Before I had G510 US as well. US is dominant and I think basic layout and most gamers like US.
I would not wait UK, Filco Convertible 2 US with Cherry MX Brown is perfect typing-gaming keyboard, for gaming strictly I would go on Black, for typing strictly on Clear, but no Clear Filco and that's...