haha bro i was with SUM then SUM2 then ( rebranded to NAV ) and i can tell you that coin is live...
and have even active community and god dev .

https://bittrex.com/Market/Index?MarketName=BTC-NAV

NAV raised from 100 (few months of work ) -> 2000 yesterday day pump.
rebranded coin can live if they have community