2- i prefer for my vision i think kray3 will not stick only in archiviz great engine need tobe used also in VFX compositing .... sooo it should be has :
shadow catcher system kray3 or shaders . it should give un buffer alls specifics buffers shadow pass ex...
kray3 need to read : flame and smoke from lw also for pluging like turbulence 4D as well . and need to be optimize to read water ex.. using realflow particle ..... also for characters skin shaders, ex.... cause thos things need tobe inside kray3 . soo k3 will be not only for kray user who they use it for archiviz . k3 need to be universal as Vray3 . COrona . Octane ex... cause the hard part it rendering archviiz . soo vfx composing and other stuff are simply easy for 3D engine .
the best part it about kray nextwork " i mean lan" soo it will be very good to make animation with kray3 if he support more then 200 core or thread ; kray3 adressed for Pro as for noobs. soo you just limit ur imagination . if u can take it further or less. thats it. i hope G. will plan and bring something new on this field. cause the good think about rendering is animation . sooo animation can bring more client and more money to eat live.... we love 3D.
and why i didnt put renders on the forum cause :
kray2 is soo limited .
kray2 no shaders . bad physky need to much time to acheive what u want and not as 100/100.
no posteprocess.
lw2015.v3 and less sucks hard soo kray2 sucks too even kray2 is really fast.
thats why i will not make any new render with kray2. im waiting for kray3 to achevie really really nice renders with it. cause this kray2 almost u cant do nothing

Also KRay3 physky2 need to be has that clouds Effect ON SUN and in it seems in SKy like option off or on . thank you!