@martakuz gave some information about delisting situation:
"We received an answer from Bittrex.
“(…) We encourage you to request relisting when you have completed and fully implemented the basic application for which you intend your token to be used and both the application and token can be used by the general public.”
So, as per Bittrex listing policy, they reserve the right to delist a coin if its product is not yet implemented, which is the case for Mysterium.
Everybody understands that it takes time to build a decentralised VPN with payments (where the token could be used). This is why we’re still in negotiations with Bittrex but getting in touch with other exchanges too.
We are here for a long-run. This does not affect in any way our promises and commitment to the community and product."

This is a fantastic project that I really like MYST and believe in it,

I assume it'll only be centralized during  beta and will be removed as soon as feasible. It won't be in the final product.It is explained in the white paper. You might understand it better than me if you read it. But the end goal is no central server

Just in case someone doesn't know - until the Bittrex issue is clear (if MYST remains there or not - as I see it it will be gone there by the end of January)

People who think "I better sell" can instead simply store their Myst in the MyEtherWallet com Etherchain.

Then simply Hodl - project too good of an idea as to just sell due to the exchange issues.

If one is an investor, just put the MYST tokens in a wallet and revisit it after a year. Or wait for other exchanges that will list Mysterium. There are many good enough exchanges out there that can be beneficial to Mysterium.

The answer to this is literally 3 posts above your post. You can transfer coins to MetaMask or any other ETH wallet.

Bittrex is delisting it in several days ,what's going on with MYST?

i also want to konw what happened?if the team still work for it now?i have some tokens.what should i do?

It's a shame l bought this just after the ICO, as l thought it had great potential but nothing happened and the price kept droping so in the end l had to sell. With new protocls like SUB coming out l wonder if the idea of the decentralized VPN will be such a big deal!