Are we mad not having a dining table?

So basically, this is our kitchen living. We thought we would have space for a dining table but realistically our island and kitchen takes up the bulk of the space leaving the back corner free for seating. The yellow cross ways are our oak beams, it's a double height space. There's a big corner window/double door at the other bottom corner. Two main questions. 1. Our island seats four comfortably. Would you add an extension to the island countertop and add another 1-2 seating spaces at the end to account for the lack of dining table or would this be too busy for the space. 2. How would you arrange the seating in the bottom corner. Ideally we will have our tv on the back wall. I was think a corner sofa and smaller statement chair nearer the double door/corner window?

It's a put we don't have the space for a table, I feel a couch/seating area is better use of the space as there is only us (a couple) and a baby in the house (so far). A dining table would more than likely not be used at all.

Any insight would be so appreciated. I just don't have the eye/brain to imagine how the space will work practically speaking. I also don't want to extend the island unnecessarily. Would we be fine with just four seats?