Regarding those features you asked, especially the keyframing inside Octane - I don't think it will happen. Radiance mentioned several times that Octane is supposed to be a renderer that delivers realistic results, without the need of many compositing techniques. Reading in between lines that would translate to; no shadow catcher materials & other similar tricks, we are going for strict realism. I think that Cycles will be a more appropriate renderer for such tasks.
I'm afraid Blender users are still seen as some kind of amateurs & hobbyists, that, despite of the quality we are able to produce, are not taken seriously - especially not by big companies. So, while it would be nice and correct to be treated equally like any other users of licensed 3D apps, I don't think it will happen (I mean look at us, we don't even have an official exporter

And when the majority of Octane users will work with integrated plugins, don't expect that RS / OTOY will code the missing functionality in the standalone version, just for a minority of us. It's not realistic to expect so, despite the cuddly & reassuring official statements...
