Yeah I feel like with the backbone that was introduced in Legion in terms of repeatable content, it's hard for something to become like WoD ever again.
I can see this, but honestly I actually enjoy that. I'm all for the more "closer to home" stories with the high fantasy stuff brewing in the background (similar to Game of Thrones basically).
But not just that, I feel like WoW needs to have some "breaks" here and there between world-ending baddies. I mean I'm sure most people want constant DBZ level of higher power baddies but I think it's nice that the world gets some time to "breathe" in a sense every now and then.
One of the things I enjoy seeing are the story set ups that happen for the future. Similar to how the Black Dragonflight are sort of coming back into the limelight, same with the Reds. It's cool seeing there's these little rumblings of side stories being set up for (HOPEFULLY) something more later on.
At the same time I try to curb my enthusiasm because I don't want to ever "expect the story go this way" when Blizzard has their own plans set.
Anyways that kind of turned into rambling, I'm just hyped for BFA thanks for elaborating a bit more!
- - - Updated - - -
What I enjoyed about Legion Mythic Dungeons (not plus yet), was that they introduced additional mechanics to bosses that weren't present in Normal and Heroic, I thought that was really cool in itself already.
Then of course M+ with the affixes was even cooler
I loved how certain weeks I'd have reason to change my talents and if I ever had enough leggos then switch leggos too!