I am of the opinion that an upgrade of this sort needs an entirely new name.
Pollyshares powered by bitshares toolkit.
I kindly request that we not confuse the bitshares brand.
I will also suggest that launching this will require significant dev resources just for maintenance.
I think we all agree that the current PoW chain has some serious problems. This would simply be an update to the existing PTS and was not intended to be a new coin. But regardless of how PTS is updated, if PTS is intended to continue acting as a sharedrop instrument (especially for third party DACs), the position of the Trust should be reduced. For the reasons I've outlined, sharedropping for distribution doesn't work so well when a single stakeholder is in possession of a lopsided proportion of the stake. It has worked for III because you are essentially placing yourself in a position of trust by sharedropping a lopsided allocation to the Bitshares Trust. Third party developers would not find this as appealing.
Letting PTS die a slow death would generate no value for the Trust and, as the largest stakeholder, it would seem that the Trust has the most to gain from this. You would earn a lot of money and a lot of trust if you committed to a reasonable divestiture plan. If you agree that PTS should be honored as a sharedrop instrument it would stand to reason that the Trust should responsibly reduce its position which is what I have outlined here.
Edit: Clarity. Also, I think the fundamental question here is whether we want Bitshares to follow the Android model (open platform) or the iOS model (closed platform).