Knowing that soon there will be a listing on such an authoritative exchange tokens will need to be bought now.

Still, I hope that the project team will be able to provide a strategy for the coin that will not devalue Discoin during the listing, because there are many participants in Airdrop and Bounty.

I see that the roadmap ends with the release phase of the Payment gateway public API. Is there a strategy for extending features after that or something else?

I'm not sure about CKM, but Ethereum itself is no much better. It even has higher fees sometimes.

I used verious Wallets, Blockchain as my main android wallet and breadwallet which is more userfriendly

I say no it wont replace it completely i know alot of bank in New Zealand are closing down new zealand buy and sell crypto exchanges bank account to do business which make it a lot more harder as i know bank hates cryptocurrency. in saying that banks should embrace changes but i know they wont as they still want the monopoly over people money.  this is hard to say at this stage as crypto are still new.