Maybe.
Frankly, if you are willing to live with the resulting frame rates, you can choose any settings you want. You are the one who will be playing the games, so it's up to you to decide on preferences. There is always a trade-off between quality and how many frames you will be able to output every second.
There is however no way any graphics card is going to be able to play games that are released 4 years from now, with any sort of guarantee on performance. It's just not possible to future proof or guarantee what will happen with things that aren't even currently available.
If you want a comparison, the R9 260x you are interested in has less power than the graphics devices in either the Xbox One or PS4, and my understanding is most...