Since this is not a completely new design and more like a refresh, I have hope that things like springs and shocks can be updated on older 4.4 models.Looks like Toyota has heard and responded to customer complaints about the RAV's harsh ride and noises cabin. I found the following info about the 2016 Hybrid on the official Toyota Blog UK:
Driving Dynamics
The new RAV4 benefits from numerous measures to improve ride comfort and driver involvement, without sacrificing stability or controllability......
The new RAV4 retains a Macpherson strut front and lightweight trailing arm double wishbone rear suspension set-up, but the shock absorbers and springs have been revised to give a flatter, more comfortable ride and better straight-line stability.........
There are a lot of other improvements that can't be duplicated on an older model of course, but if shocks and springs are attached in the same way, there is hope for some improvement in ride.
Thanks for the report, Sheddah,