The Kokua viewer is mostly maintained and build by Nicky Perian. Nicky at 75 is sort of retiring from viewer development. This will likely leave Kokua Viewer without a driving force.
Nicky has posted this information on the Kokua blog, Path forward.
If you are into building viewers, this is an opportunity to head up the project. It will need a new lead developer.
In the meantime, Nicky plans to add in the Alex Ivy 64-bit upgrade. But, during the remaining time Nicky spends with the project until may be October 2017, he will drop RLV support.
I suspect dropping RLV will cost users that use RLV. But, that can’t be helped.
Nicky has been a great contributor to the SL Viewer community. We will miss his contributions. I wish him all the best.