Bit-z is not a satisfactory exchanges, a good exchanges is vital to sem and cannot be blind.
Binance is good exchange with tons of volume. A working MVP will be good idea before we go their.
Current Roadmap
Sep 7, 2017: Alpha test - completed
Oct 1, 2017: Beta test - completed
Nov 5, 2017: RC test - completed
Jan 20, 2018: First release with Semux BFT consensus - completed
TBD: Second release with Semux virtual machine
TBD: Third release with Semux decentralized application
Semux DAPP will be good to launch Semux on exchange. Community members has to make decision.