This is actually a good question - were there similar examples in the past?
I guess exchanges will be notified to delist “old” Safex coin trading at a certain moment, and will give a deadline for users to remove their coins? But what will happen to coins not withdrawn from exchanges?
I would also like to know will there be a deadline for switching “old” Safex coins to new ones by burning? In other words, if someone discovers he has Safex coins on BTC blockchain two years from now, will he still be able to claim “new” Safex tokens?
And as a result of all this - do we expect “new” Safex coin supply to actually be lower, due to “lost” and non-burned “old” Safex?