Bloodmoor, they've been coming out with new cards as they always have. At the rate of 4 per 2 weeks, with an occasional (about once a month) single extra. It's really not that fast.
The New Blood
packs (if that's what you're referring to by newbie packs) have always contained the last 35 characters that came into Clint City. When a new character comes in, it bumps the oldest out of the
pack. For example when the next 4 characters come in, they will bump
Lewis, Marlysa, Ombre, and Selsya out of the New Blood
Packs. At which point they will only be available in their clan specific
packs or the 8 card
pack
(Action for
Lewis and Marlysa, Danger for Ombre and Selsya).