stan
why not just use Proof of Burn?
Burn 1pts1.0 you get 1pts2.0 before the deadline
then destroy the address of pts1.0
All the DACs honor PTS2.0&AGS such as Lotto DNS etc.
Proof of Burn would be a good solution in a perfect world where everyone could participate, but it will add time and effort to the upgrade, and it will be perceived as unfair for those missing out on the burn. Even if "burn donations" are accepted over a long time period of several months, there will probably be some who miss out, through sickness, vacations, natural disasters or any number of things that can occupy you for a long period of time.
Those people who miss the burn will be left with worthless PTS1.0 and no way to convert them to PTS2.0. That's not fair, so I prefer letting the two coexist so people can get their PTS2.0 whenever they want.
However, I'm mixed as to whether the remaining 300k shares should be airdropped or not. As Stan points out, giving them to existing holders will give them a 15% dividend, but on the other hand doing a pure airdrop/marketing scheme will dilute them. Let's not forget that those 300k shares are not currently mined, and theoretically represent a dilution of the value of each share if they get instamined this way.
The marketing/airdrops might create buzz and raise the value, but this is still a risk to the investments of current holders. I therefore propose that at least a portion of the remaining 300k shares are distributed to current holders, something like 20% to PTS. I'd even support giving a percentage to AGS holders, as a reward for supporting the development of the technology enabling PTS2.0.