In a tweet from one of the Bittrex founders Rami Kawach today, he announced that the ERC223 contracts are now compliant in Bittrex.
What this means is ERC223 tokens such as MGO that have been trading on low volume exchanges will now finally have access to a trading platform with decent volume. At this stage Rami did not say when these other tokens will be added just that they are now compliant so it's very much a waiting and watching game for further announcements.
So who's buying, who's selling and who is HODLing? For me it's a HODL but I'll watch just in case there is a crazy jump and profits need to be taken off the table.
This is not investment advice!