I'd create two separate areas, yes

one, smaller one, next to the windows-two armchairs with a table between them. probably would go with something legged..more visually light, as to obscure windows the less..or give an impression I'm obscuring them the less:)

another, bigger one, for TV watching..a sofa..an angled chair on the right much like you have now, but looking smaller..I might consider doing smth different since several chairs in the room..maybe a rocking chair? I might also go for an ottoman instead of a coffee table-can serve as additional seating if needed. I might also find a garden stool as one of the side tables-again, opportunity for additional sitting, if a lot people use a room at once. Round shapes will also break the lines of all the rectangular furniture, so I'd definitely take it into account when shopping.

I also might do something patterned to add interest..say two armchairs, or an ottoman, or a chair in bigger sitting area..

Rugs would help to delineate different zones, so another idea to consider.

Pretty room. Once you get your balance right-full of potential to be very cozy.

Yes to two very comfortable chairs near the windows with at least one floor reading lamp, table, bookcases for a private reading area.

Instead of another sofa, get two upholstered accent chairs--comfortable but not bulky, up on legs, abd complementary to a new sofa. The chairs should flank the fireplace and be reachable to the coffee table. This will create a conversational grouping.

Kiruna Wingback Armchair and Ottoman, Light Gray · More Info

Fairweather Chair · More Info

To further anchor the TV watching/conversational grouping, layer a patterned rug over your existing one:

Safavieh Vintage Persian Collection VTP409 Rug, Turquoise/Multi, 8' X 10' · More Info

Surya GER-2322 Germili Area Rug, 7'10' x 10'3', Coral/Mint · More Info