Inside Unreal: New World Building Features

In the Question-Answer session, Jean-Francois mentioned that there is a new water system that is under development for UE5
. So, I want to know what kind of feature will be in that water system comparing to the one that we have in 4.26.
will there be any shader improvement in the new water system of UE5?
will there be physically correct waves? because waves in the 4.26’s water system don’t look realistic.