I don’t know how NuBits is being pushed to new exchanges.
But Coinomat.com is heavily involved with NXT. They provide a service like shapeshift/coinbase.
Coinomat also allows deposits/withdraws via wire and to debit/credit cards. It would offer a new venue to trade NBT for USD/EUR and get money in and out of the market via wire.
You can vote for coins to be added and NuBits is on the list…way down though.
You can upvote NBT for 0.0005 BTC.