Seems like the day 2 queues are just as long as the day 1 queues.
There didn’t seem to be any appreciable database lag last night. A lot less got logged to the database in Vanilla than in Retail, so the database can probably handle a lot more characters.
Characters are already getting spread out between zones due to leveling. Since server stability seems to be limited by characters per zone rather than total characters, this suggests that the cap on total characters per server could be increased over the next few days, greatly alleviating the queue times.
In the longer run, if necessary, server upgrades might be in order.
If Blizzard doesn’t do this, the queue times will alleviate themselves by people’s quitting, which will hit Blizzard’s revenues.
Blizzard, are you listening? Do you care about making money?