I think you all have to be a bit patient with bigger exchange. Much more established coins are still not listed on bigger exchanges. And using Yobit, HitBTC, Livecoin in same sentence as Bittrex or Poloniex is stupid, those are two completely different levels.
Just patience everyone and let this project grow normally, I think it can be solid if dev is really determined and for now it looks so. Unfortunately the climate in crypto is that everything has to happen overnight.
Yes it can take time, Bittrex and Poloniex have been contacted and my information was sent to them, as far as getting an ETA, that is entirely unknown as they do not comment on when a coin will be added.
Other exchanges have also been contacted like HitBTC, Shapeshift, etc. you all will be the first to know if they add Denarius.