From the start of the game way back when until now, I'd have to give them an 80% chance that maintenance will be extended anytime they have maintenance.
It should be simple:
Step 1 - Take Authentication Server offline
Step 2 - run update program on individual "servers"
Step 3 - reboot servers(fully power off and on)
Step 4- make coffee and wait 2 hours
Step 5 - make sure servers are "up"
Step 6 - reboot Authentication Server
Step 7 - make players happy by not extending maintenance
Bioware, i'll send you a bill for $150,000 because I just made updating your game very simple.