8 hour maintenance doesn’t bother me when it’s announced so I can adjust my schedule accordingly. What bothers me is like yesterday, when they put on the launcher and on the forums that they’re doing maintenance only to eventually go onto their Twitter to find out it’s maintenance for Bnet only.
I doubt they’ll be down until 5. Don’t worry, the Maw and those 30 anima world quests will be there waiting for you.