To me the proposal looks to be a simple change from new DACs honoring PTS/AGS to also now honoring BTSX; coupled with drawing together the devs and value from certain DACs and maximising their contributions, all then becomes within a new BTS. The benefits far out way the losses. The anxiety about what was commitment to PTS/AGS; and the change this means for KeyID/DNS; Vote; etc, has spawned a lot of chatter.. but it's all good.
It isn't clear when this might happen, though 5th Nov snapshots has been suggested. Hopefully it'll be just a simple merging of marketcaps into one bigger stronger BTS, where there were multiple flavours inc BTSX.