I am pretty sure that Bittrex will not list any coin that has nothing to do with them. In last months they listed just several coins, and they advertised those like their own coins on twitter, i know, i follow them closely. Coins like DAO, and coins like BreakOut coin. Both scams, like the exchange itself. Maybe they were even Bittrex own coins. (I am sure Breakout is.)
Maybe GB has nothing more then selling Gold, but people as far as i can see got gold for cheap, mined coins. Do Bittrex has something to sell? Do they make something for free, except listing scams and ripping off developers and traders ? Do they support pioneer development in cryptoworld in anyway? Believe me guys, Bittrex is the next crash, believe me, i haven't traded there for 2 years, and there is a lot of people like me i am sure. I better believe in Russians exchange then Bittrex.
But like jacko0088 says, GB do not need Bittrex, there are several other and better (honest) exchanges out there.
I have some GB and i will not sell for nothing less than 0.00030000 btc per GB.
Just look at the marketcap. its funny, best time to catch the train