I'm still in favour of UK champs deciding Euros spots, and final Euro rankings deciding Worlds places. If it becomes standard (and I think it should) for major tourneys to always have a prelim or qualifying tournament, then any 3 players - irrespective of city, country, whatever - who didn't make it through their nationals can still travel to said big tourney and have their shot at qualification.
I'm still in favour of UK champs deciding Euros spots, and final Euro rankings deciding Worlds places. If it becomes standard (and I think it should) for major tourneys to always have a prelim or qualifying tournament, then any 3 players - irrespective of city, country, whatever - who didn't make it through their nationals can still travel to said big tourney and have their shot at qualification.