things listed would be nice to see

-- overwrite all materials with custom material
-- able to exclude some objects from overwrite ( through octane tag maybe )
also it's good to have some of this below
-- blur maps, (blur images, useful for bump )
-- distance texture map.
-- light mixture like corona render, lights can be edited while rendering is running rather than start over again each time you make a change in light. - also once you happy with the light it can reverse numbers back to setting so the final render you don't need to use light mixer again.
I assume de-noiser is coming with octane 3.1 ?
I really like octane, and have been using it for few years now. if those changes happen anytime soon that would be awesome !
Cheers
Rif