Help With Living Room Layout

Wife and I are building a new home and the living room is a bit bigger than our current living room (19.5'x 16' vs 12'x'15). Attached is our current living room furniture in the new space, but set up like we had in the old place Its a leather couch, ottman and chair I bought about 9 years ago from Ethan Allen for our current home and was hoping to carry it over as it still looks great.

We spend almost ever evening together on the couch for an hour or two watching tv. So its a very lived in space. I think the tv on the right wall (we didnt pick the optional windows) is required to limit sunlight issues, though we never will open the curtains.

How much space should we have behind the cough for proper flow? Would it be okay to have the couch off the north wall to keep the tv centered on the wall? How far back should the couch be from the TV. I think I will need to increase the tv size from 65" to keep a similar viewing angle when we move back. How else should we fill the room?

What would be good to fill the space behind the couch? I dont think there will be enough room to add much more than a table.

See image of kitchen and foyer to under stand the flow.

Thanks for the help!!