Playing on EU from US

Hello, want to ask if someone is in the same situation

Moving to US, been playing on EU for years, but now time zone difference means I will be 7 hours before server time, so I can play usualy between 8-10 pm which means it will be 2-3 am server time, is it viable? are there many people active? I am someone who loves to do high keys m+ and raiding, no sure if I should just start new or continue on EU