The answer to question 1 is no.
The answer to question 2 is also no.
Irrelevant of what happens: teams 1-7 will play in Europe.
If Leicester and West Ham win their cups but end up outside below 7th, England could have 9 teams in European Competitions next year, because both teams 1-7 and the...
The 8th placed team can only qualify for Europe next season if they win one of the European Cups, and since Brighton won't do that, there's no chance of going to Europe through 8th place.