http://www.shacknews.com/onearticle.x/65147

not much info in it though, this are the two interesting parts imho:

We actually have 15 new maps that we're already working on that we'll be releasing," says Nix. "We haven't worked out the schedule, but ideally we'd like to release maps once a month."

Though the subscriptions to Quake Live are low per month--$2 and $4 a month for Premium and Pro respectively--plans are billed on an annual basis. It turns out, this is mostly due to credit card fees. "If you're charging $1.99 for something, but have a $1 in credit card fees it's really hard to make economically feasible," says Nix. "The idea was to find the absolute lowest cost we can keep the services at, but still do it on an annual basis."