https://trends.google.com/trends/explore?date=all&q=star wars unaltered trilogy
Some info on when people have searched for ‘Star Wars unaltered trilogy’.
In short, there were small spikes in 2006 and 2011, then people cared a whole lot right when TFA came out, then cared a bit less when Rogue One came out.
So I’d say it’s obviously a good idea to create a stir when it coincides with a major movie release or a blu-ray/4K release of the OT.