Here are some kitchen decorating ideas that will probably continue to be in style, even years from now. They are classic looks, yet not stuffy.
1. Stainless Steel Appliances
Photo is from the article "Home Features" by Dee Marie Fischer
2. The Combination of Blue and White - from antique transferware to contemporary designs
Photo is Wedgewood Dinnerware from Bloomingdales
3. Ironstone Pitchers - you could use one as a vase for flowers or to hold utensils
Photo is a pitcher for sale by Seaside Rose Creations on Etsy
4. Marble Counters - although they stain, the look has been popular for ages and they're heat-resistant and chip-resistant
Photo is from an article called "The Benefits of Marble Countertops" by Rodican Home Design
See also - Robinson Builders' Marble Pros and Cons
5. Subway Tile - currently white subway tiles with dark grout is a popular look, but the tiles themselves have been popular for years
Photo is Taupe Grout with White Subway Tile by Homemaker Remodeled Blog
6. Herb Gardens - basil, rosemary, and mint are particularly easy to grow and to use in your cooking
Photo is an Herb Garden for sale by YLiving
7. Dove White Paint - use it on walls or cabinets; Designer Thomas Pheasant is fan of using it "for brightening spaces"
Photo is Benjamin Moore White Dove seen on The Cow Spot Blog
8. Cast Iron Cookware - think of Lodge frying pans and Le Creuset dutch ovens
Photo is Le Creuset Dutch Oven on the Why Research website
9. Orchids - they require surprisingly little maintenance yet make a big impact
Photo is by Zinnia Floral Design
10. Breakfast Nooks - preferably with built-in seating in the form of a banquette
Photo is from Decoist's Ideas for Breakfast Nooks
See Also - Pretty Little House Things' Eight Breakfast Nook Ideas
11. Oil Still Life Paintings - this is particularly true for paintings of food (lemons, oranges, apples, etc.)
Photo is of Yellow Lemons Painting by Hobson Fine Art on Etsy
12. Recessed Lighting
Photo is Recessed Lights by MacEwan Electrician
To see some of these looks together see this kitchen from Marianne Simon Design. It incorporates ideas #1, 3, 4, 5, 7, and 12.