Nikon is rumored to announce a new Nikkor Z 24-70mm f/2.8 S Mark II lens this week (today or tomorrow).
The current 24-70mm f/2.8 lens is not on the list of upcoming price increases and currently has a $300 rebate:
The new Mark II version is expected to be around $500 more expensive than the current model (maybe even $600 more in the US because of tariffs).
The list of all upcoming/rumored Nikon products can be found here.