We'll be talking to Paizo about this further at PaizoCon this coming weekend. I'll be showing off portions of Rise of the Runelords to Paizo, plus we'll have the Pathfinder Core Rulebook, a large chunk of Freeport, and a few other examples to show off. Hopefully, they like what they see and we can move forward with an official license, but that remains to be seen.
In all other respects, @Silveras nailed it.
