The Archmage Engine is a SRD version of the underlying mechanics that 13th Age uses. Would it be possible to release this version instead of (or in addition to) the branded 13th Age version?

Right now the ruleset is locked against editing, and I'm not sure if that's because of it still being within the first year of release or if it's because of the 13A branding that's included (logos, etc).

Just curious....