Sure, there are some TV Wall Mounts that have large cut-outs in the mid-portion of the Wall Plate, where it gives you just enough room to mount the wall plate around an electrical outlet like the photo above.
But the problem with having an electrical outlet in the center portion of the TV is that – You will be limited to very few choices on the TV wall mounts that you can choose from (that can be mounted around an electrical outlet). And the height of the TV is pretty much pre-determined and you cannot change that – unless you re-install the outlet.