There will be no child boards. The admins have indicated that multiple times. The altcoin board (like off topic) sole purpose is to keep the main forums on topic. Your request will be about as likely as asking for child boards for "off topic" because it is getting too cluttered.
I'm just not ready to use one of the alternative forums (
cryptocointalk.com or
altcointalk.co.uk) and I'm willing to give it a fighting chance. Plus "Archive" has child boards, whats up with that?