The way this ICO ended with raising amount of over 10.5 million dollars in it's pre-sale round. It is showing involvement of big investors who took the project by pouring huge sum of money to complete it this early. It's listing at big exchanges like Bittrex is inevitable. All we can do is to wait for seeing announcement of trade opening anytime soon.
EtherDelta.Github.io will have it listed before Bittrex most likely. They already have Status SNT listed and those aren't even tradable yet. Still I hope a major exchange like Bittrex lists it sooner rather than later.
Etherdelta doesn't have volume in most cases if some token is listed their to check the patience of holders. I have seen few tokens having start from there and all went same way. If it is there already then Bittrex will come later once small investors will be out else I don't see any benefit of being there.