One of the Belgians will probably attack quite early. Officially they have two leaders, but in reality seven of those eight are stealthily hoping to win by themselves. Tim Declercq will be the only one who's 100% committed to working for the others. It can be a matter of being away first, to avoid having to sit back in a pursuing group.
The Dutch have one clear leader, MvdP, but they have eight riders from seven different teams - only Jumbo has two. The question is whether they will really ride like a team with one leader.
The presence of a DQSt leader in several national teams can be a tactical issue: Alaphilippe, Stybar, Asgreen, Gilbert, Evenepoel... I don't see them actively chasing each other.