I would place the sofa facing the fireplace either with access to what's behind the draperies or not, and put the tv where the chair is--roughly. On the far end I'd arrange a small conversation/reading/activity area. IE:2 chairs, a table and a lamp or a small activity table with a hanging lamp. Of course, seeing the scale of your new furniture, once you receive it will help. I just hope you have selected comfortable furniture in a smaller scale than what you have.

Oh I have not even touched the surface of fabrics that are available and beautiful. But, best to qualify further if you are recovering or buying new chairs before we get too excited or caught up in the beauty of the products. I love fabrics and the chemistry and technology that goes into modern day fabrics would astound most people. I'm not even talking about the residential fabrics like the Robert Allen collection I showed you. I'm talking about the fabrics for the hospitality and medical care industry. Now if you are interested in MODERN look fabrics I would send you to Maharam to look at their 20th Century Modern collection. Some of those are the real deal by Eames and Girard. Anyway, when you get further along in your plans then I can give better input.

And the seating areas are different, don't try to make it look like one area. I would put minimal ( if any) teal around the black sofa. Do your dining room. Then give you living room the same respect, it is it's own space

Love your style and you've got some beautiful furniture there! A deep aubergine purple velvet on your wingbacks would look stunning. I'd tend to stick to purples in this area to keep it classy. Also, a dark purple would be more practical with kids than a cream. I'd keep the chairs you've got, unless they are really wobbly. Get someone to check them out and give you a quote for repairs and then you'll have a price to work against to see if you can get cheaper. OnePlan is right on the style and yet I don't think they look out of place in the room. I also like the idea of bench seats or if you wanted something really different, you could get a church pew?! I don't think the room has too much dark furniture as it is a large light area. Keep us posted with pics/samples of possible fabrics you find. Also, check out fabric outlet places.