In terms of "repeatable downtime content" theirs some stuff, but it also is quite lacking in some areas, I feel like the issue is for one how they've treated variant dungeons.. Like why do we only have one so far into 6.4? (we won't be getting the next one until 6.45), not to mention the lacking rewards for the harder versions.

New Deep dungeon? I mean this is likely the biggest "time sink" we have currently from ew, I personally don't really like deep dungeons much, many people don't, rauds/savage? Sure I guess but you get 4 raids every 8 months. Theirs a few other stuff I haven't mentioned in general such as PVP, theirs not really a "massive" lack of content, the issue is it's all too spread out and niche, You could tell people theirs, "older content too!!" but most older content being really out dated and classes feeling really bad to play compared to their ew skills makes that even unappealing. Bozja as much as I'm neutral on it actually had a lot and was appealing to a lot of people, Personally I just want more to do in battle content, why I enjoyed variant dungeons and felt like they were a fresh take on what we had compared to the normal dungeons we had.

I think really their needs to be 2 things changed from what we got
1. Making older content less boring to play, by fixing abilities, easily adds tons of replay value to a lot of old content.
2. More Varity in a single thing, its all well and good to have different types of content, but at the same time it's better to focus on a few things and refine what you can do in that content, theirs no point in adding things like variant dungeons if we're only going to get like 2-3 this expansion. (Prolly never to see them again)