Ether Delta has been through difficult times and some asian teams are just like this: they can't speak or write English (neither do I). Just not to mention
all the hacking issues that some of these exchanges are being victims of.
I remember from the first big beginning, when it was announced that EDT would be sold for 8500 / 1 ETH.
At the same time IDEX was launching their memberships. For the same money people would have had much more than when buying the EDT promotion.
Some of the biggest exchanges have their own token or coin, so the most people tought, why not, this can work.
Today EDT is at a very low price. For 1 ETH you can now get not 8500 EDT but 300000 EDT. This also means inflation or, to be more precisly, TOKEN price depreciation.
The next question is, now that EtherDelta has resolved some of their technical problems, will the TOKEN go up again somewhen, one day?
Regarding the TOKEN swap or the contract address change, don't let you be foolished.
If you follow EDT Tweeter you will able to read, that they are not performing a EDT2 Swap.
Perhaps it exists and it is real, but not from EtherDelta.
BTW, EtherDelta is doing a mistake by not indicating how many EDTs are now circulating. However, if they really burned the TOKENS that were not sold during their promotion,
I think there are around 750,000,000 EDT Tokens in circulation.
Is this the TOKEN burning transaction? =>
https://etherscan.io/tokentxns?a=0xCe53a179047ebed80261689367c093C90A94cC08&ps=100&p=39https://etherscan.io/tokentxns?a=0xCe53a179047ebed80261689367c093C90A94cC08https://coinmarketcap.com/currencies/etherdelta-token/#markets