You have to consider that many AAA devs most likely use a heavily modified version of the UE3, in which they added all the necessary techniques they need. Re-Integrating those into UE4 takes a lot of time, but as far as I heard Street 5 uses the UE4 already, which I think is a great thing. Hope that is correct so far.
As side note: thread is really messy, it’s hard to actually to find what one wants under all these misc posts. Maybe split it up into a support thread and a discussion thread, would that be an idea?
Greetings,