I'm not sure how many people to not of the draft BIP I submitted to the list in early April. It was essentially a combination of Gavin's BIP 109, Adam's 2-4-8 idea, and something I added to SegWit that I call "Discount Governing."

It basically takes the idea of gradual increases one step farther: a gradual increase of both the Total weight and SegWit discount rate over a period of X years (a schedule of Flag Day + X blocks increases).

Would this be something that some in the dev community might consider if/when SegWit is combined with a block increase?

Original draft here:

Ollie