One of my childhood friend who is now in Yamaha procurement department told me that YBR-Z (Conventional version) will be available in the start of 2017.
He told me that initially company had a plan to launch this version in the last quarter of 2017, the reason is the downfall in sales of YBR and YBR-G.
He also told me that company was not expecting this early low sales (as per their expectations) so they are now forced to launch the simple version early to regain sales. I simply asked why not now so he told me that we are doing localization nowadays for Z version. I am still not sure why they need a full year to do localization.
Secondly I asked why the company didn't launch the simple version first. He told me that they had an agreement with the government like if company brings something new which is not really available locally so the company will get extra benefits from the government side. In short if they launch simple version first the company was not able to enjoy duties off.