Center speaker placement?

At present in the ht rig the center speaker sits under the tv on top of the entertainment stand everything is on.
The wife wants a bigger tv!
Any larger than the present 65” will mean there will not be enough space for the center speaker under the tv any longer.
So only option would be to now mount the speaker above the tv on the wall.
My questions with this proposal would be delay as speaker would now be approximately 12” behind the top of the tv where now it is approximately 3” in front of the tv. And it obviously would now be a lot higher.

What is the consensus on center speaker placement from the more learned ht experts here?
Thank you.