Pretty room. Not a pro here, but I would stick with your current table unless you never plan to entertain a bigger group. It offers more flexibility in terms of pulling up an extra table to expand seating. I have a large round table, and it's beautiful, but there is a lot of wasted space in the middle and it really doesn't lend itself to being placed anywhere but centered in the room.

I would get a round one but that's just me.

I vote for round with the largest sq. rug you can find.

Need to make sure chairs are on the rug when they are pulled away from the table.

... and lower the light fixture to 30" above the table center.

I also vote round! I’d actually do no rug and remove the light fixture. Your floors are beautiful and the light fixture compete with the gorgeous architectural beams.

Round.

I agree with most that round would be best-preferably with a pedestal. It offers the most leg room and is the easiest to add another chair when necessary. And then there’s the bonus of having the chandelier centered over the table.

I have a square dining room and a round table. it becomes oval when I put leaves in, but I think either way the shape works well with the room..

Your decision should be based on how you plan to use the table, how you like to set a table and the final appearance of the room.

@BeverlyFLADeziner this is amazing, thank you! The 72" doesn't look that much bigger than the 60" table.

The illustration is not to scale. Don’t base your decision on that

Here is a sizing chart

There's an awful lot of linear stuff going on in that room. Round would be a great contrast.

I’d do a round table with a pedestal base so there are no legs to get in the way, especially when adding more chairs to the table when needed.