I think the prospect of a Britain-set series is exciting. The other anti-Krakoa nations are all more obviously "evil", the UK is a traditional Western democracy and showing the hard life for mutants there I think has a lot of potential to dig deep into classic X-themes while treading new ground. Would be cool to see some British, Irish, and Scottish mutants represented here (Banshee or Siryn? Pete Wisdom?).
It's not like we'd really get another writer's take on this cast. With the characters Howard has left, I'm confident Betsy and Gambit would be picked up, but I could easily see the others go into limbo for a bit.