Sky have done a article about this:
The Foxes go into their last 16, second leg with Sevilla 2-1 down from the first game, and if Craig Shakespeare's side pull off another miracle by winning the competition, they would gain a fifth Champions League spot for the Premier League.
With five clubs then qualifying for the Champions League, and a maximum of seven allowed to qualify from Europe from England, only fifth and sixth-place teams would then qualify for the Europa League.
But what happens if the more likely event of Man U winning the Europa and don't finish top 4? That would mean 5 CL places, would it stop us getting EL?