I really don't get why people complain about rogue populations. What is it to us if our population is high or low? The lower it is the less competition you have for guild spots. Too bad 90%+ of WoW don't like playing rogue, it's an acquired taste I'd say. I only gain from the game having a low rogue population. The thief archetype is never very popular in MMOs. Rogues were only popular back when world PVP was still a thing, due to stealth. It has nothing to do with the class being unplayable gameplay wise, most people just seem to prefer ADD proc spam rotations, but if they turn rogues into one of those too then you will just alienate the current rogue playerbase, which might lose them even more of the rogue population than it would gain. We don't need a revamp, we just need some interesting talents and some better animations.
If you seriously think rogues have ever been the worst PVE class, you're delusional. The only time I recall really sucking was in 3.0 WotLK until we started abusing HAT bugs.