Bitmark will still be called "Bitmark", but we are changing the ticker symbol to MARKS (from the old BTM).   Cryptopia.co.nz already has us actively trading and listed as MARKS.  Poloniex has been advised that we wish to use the MARKS ticker symbol and they will be changing from BTM to MARKS, but they replied that the change is not trivial and may take a while. Fortunately, at Poloniex there is no confusion as there is no other coin there which uses BTM.