I guess I'm one of the very few that enjoys ...

... 2 new awesome battleground maps
... interesting new dps rotations for the classes I play in pve
... the fact I don't have to do heroic dungeons every day, I can cap out from raids or do them all at once
... the shared 10/25m raid id, don't have to do some extra pug run (on alt) just for a couple of pieces
... the relatively challenging hc dungeons to gear up at cata launch
... balance among dps specs, there is only a very small difference between the best and the worst dps specs, bar a few exceptions
... very challenging heroic T11 raid content
... challenging T12 content with some awesome new boss mechanics
... the brand new leveling experience for alts 1-60
... the fact that I can fly ... this includes the many quality of life changes, including less cumbersome talent trees

I can go on for a while about what I liked compared to wrath (started playing about 2y ago). But if you get bored with the game, I guess that has more to do with yourself than with the game. I don't see myself playing the same game for 6y to be honest. The loss of subscribers doesn't really affect me, and I see it as a natural evolution that something that got so popular loses attention over time.

Recently I re watched 24 (jack bauer) season 6, back in the day i was bored, same old shit, now I could really appreciate the quality of that season.