I wish I had a magic answer for your question. The overwhelming majority of my photography is within 100 miles of my home. I am fortunate to live in area where there are very distinct changes of season (Kentucky). I love to photograph during the transitions from one season to another. Fact is, regardless of season or weather, my wife and I just enjoy being out in nature. Some days I take hundreds of photos some days I only shoot dozens. For us it isn't about the quality of the photos it is about the quality of the experience.
One thing I do to mix it up is macro and landscapes. Around here, we have no big mountain vistas, rocky shorelines with crashing waves or other classic landscape scenes but we have a lot of what I call "intimate landscapes." By that I mean a branch hanging over a stream, fall colors on moss covered rocks, gnarled roots of blown down trees, layers of colors in the fields, old fallen down barns in fields of flowers, etc.
You may want to think about giving macro a try, shoot insects, wildflowers, intimate landscapes. Go out for a day with only a 24-70 and a macro leaving the telephoto home. Sit on a rock by the shore of a lake or pond and photograph the dragonflies, frogs, turtles, snakes and birds that come along. If you live in area where you have cold winters, photograph patterns in the ice. Look at little puddles that froze overnight and take photos of the patterns and bubbles with your macro lens. Photograph frost on the edges of leaves in autumn. I don't call myself a "wildlife photographer". I say I photograph nature and wildlife. There are many exciting things to photograph when slowing and looking at the tiny details of insects hiding in flowers, spiders waiting to pounce on a meal, snakes sunning on branches alongside streams and those intimate landscapes where you can play with light and textures on the bark of trees.
One thing I like about photography close to home is I have a pretty good idea, before I leave the house in the morning, what I can find out there. The only advice I can offer is if you're getting bored with the wildlife, try some other things and see if that rekindles your passion.
Hope this helps.
Jeff