I dunno, there's a lot of stuff in the trailer reminiscent of the UK, to name a few:
- Two of the starters, bunny and froggo, are animals fairly common in the UK. Should have made the monkey a field mouse or something.
- That hillside grass art thing is fairly common here.
- Industrial mills were a huge part of the UK, seen in the trailer.
- The UK is filled with countrysides and farmland, as well as buildings/houses similar to those shown prominently in the trailer.
- There's mines in the trailer, the UK at one point having a huge mining job market.
- It shows a football/soccer stadium, football possibly being the most popular sport in the UK.
- There's a snowy area, because the UK is always cold...Except for that one week in summer where we get sun, represented by the fire area (I'm not being serious with this one)
Plus the name, 'sword and shield'. This relates to so much stuff in the UK's history, as well as today actually since we still have castles and all that 'swords and shields' stuff all over the place.
It looks more based on the UK's historical relevancy more than how the UK is today (probably because it would be hard to make a family friendly game world filled with abandoned highstreets, crime and racism), but it's still the UK.