No - just as I've never had to upgrade my GTX 580. Ha Ha ha ha ha.
it all depents on what you want to do with it. if you play games and want the best preformance and quality in every game that is being released.then in a year or two you might want to start looking for a better gpu. if you want to just have it for 4k and some games now and then then you might not need to change it untill it fails to work one day.
Maybe when playstation 8 comes out.
hahahah ye, the graphics when that comes out will look like real life lol