No, there is no difference expect maybe the updates/version number and region...
If you go to 4story.co.uk and click on the US flag, you'll get sent to Gates Of Andaron. It's just the same game with another name for the US version.
Edit: My mistake. o.O
The global Gates Of Andaron, is actually an US version, just that it's more laggy (At least for me compared to the US version linked from the UK versions homepage).
So there is two US versions. Maybe the differences is the Cash Shop prices, I don't know.
The game is okay anyways. : /




