I think it will be okay. I've never read that blueberries and tomatoes are "enemies" of eachother. Keep in mind that tomatoes are heavy feeders so, add lots of compost to the tomatoes so that they don't rob nutrients from the blue berries.
I'm not sure what type of soil that tomatoes prefer, I've always grown my tomatoes in soil that is slightly basic (maybe 7.2) but, I think blueberries like it from 5 to 6. You might want to investigate that.