Well, ours has arrived. One intriguing element - there's a Question Nine heading - only there isn't a question nine, there's just a note saying that it doesn't apply in England. So what is this question we aren't being asked here?
Other points, I note that though you can opt for Irish as an ethnic group, their isn't an option for Scottish or Welsh. I imagine there'll be a lot of people using the option of "other", and writing-in Scottish or Welsh, the way we had to do with Irish in the last census.
And I can't imagine any problem with people writing-in pagan or Wicca, under the "other religion" heading. But "Jedi" I'd have thought shouldn't count as a religion, surely it's a religious order, like the Jesuits, rather than a denomination.