Seems likely. I think it makes sense to assume we'll have a "lightweight" process for smaller things -- if someone erroneously submits an RFC to the lightweight process, or if an RFC turns out to have more complications than originally thought, we could always move it over to the "heavierweight" process. One might imagine giving these two distinct names. Something like a proposal (the lightweight version) versus an RFC (the heavierweight version).
Anyway, I think for now it makes sense to focus on "heavyweight" proposals (such as most, though not all, language changes) since I think that is where the problems are most acute.