Trend is both, both very good looking and acceptable. You really need to find out which look you prefer--both for itself and for your particular space. Get some old decorating magazines (flea/antique market shops often have a bunch of them) and tear out every picture you like and set them out. When you come across floors you don't like with darker and natural oak flooring in them, tear those out too. I'd very be surprised if you didn't learn something about your tastes worth knowing.

I think if you were to have all the floors refinished, they could match a new floor to your existing. Have some good hardwood flooring companies come out and advise you. Personally, I would stay away from any dark floor, it will show everything.

Hard without knowing exact shades and your style and the whole concept you're going for, so totally agree with others-nothing will be as helpful as seeing your pics Without that crucial info-I can tell you so many colors your leather can be and work beautifully..whites/off whites, tan, blue, purple, green, pink..you see what's happening here? too many possibilities(and lascatx is right-generally speaking,you pay more if you want more "non-standard" color, not always but in most cases..not without exceptions though, and Macy's, with its limited choice, is indeed an exeption, somewhat. ) but many possibilities are nice to have too:) I personally love leather in colors..and find it much more versatile to use against different backgrounds/with many pallettes, than, say, something like black. (coming from someone who has more leather seating than she'd like to have lol..I've aubergine, off white, sunflower yellow, brick red..ready to switch some of these, at this point, frankly..I covered couple of armchairs as to have other textures, you know. they're obviously not situated in one room either..but one gets tired of leather after 20 years, even though of course it's immensely user friendly))) please post your pics if you want more specific advice/suggestions of stores, etc and whatever your style is-the lines is the most important thing (well and quality of course)..pleasing lines, good lines, whatever color you go for

I would consider simply painting the table base and chairs to match your kitchen. Add a rug to anchor the area and change that fixture in the kitchen You have a well-built table with a top that can take a beating. You might not even have to paint if you get the right rug for underneath the table. All of these rugs are indoor outdoor rugs so needed you can hose them off.