Let me just nip this in the butt right now. Tonight is the typical maintenance schedule SE has taken with this game. Now that all the HW content is out that SE announced well in advance, things should be back to the typical 1 week maintenance (possibly even none, but I wouldn't get your hopes up too high for that just yet). There is always a slight possibility that a serious exploit is found and needs to be patched during an emergency maintenance, but for now, I think we will be only having the weekly maintenance which may seem like an annoyance or inconvenience, but helps make the game better in the long run.