LISTEN TO THIS MAN.Release the editor as a DLC. You can play the maps, but in order to edit geometry, you have to pay for it. Purchase Limited/Legendary edition and you get the code in your package. Now you've boosted sales for Limited and Legendary as well as making users of the standard buy a code if they want to actually edit the geometry. Standard users will still be able to do the basics of Forge like moving weapons, equipment, and spawns.
The "advanced" component of Forge should be a standalone product. Those who aren't interested can pass it up and benefit from the talented guys who are churning out the maps but concede the ability to make their own advanced geometrical edits. I always thought a PC editor would be best but even a separate DLC package would be ok. Advanced forge owners would be able to share/download and edit other AF maps while non-AF owners could only access them in customs (have the base canvases written into the original game) or wait til they made it to MM. I see this as having huge sales potential and it allows the consumer to decide how involved you want to be in the map making process.