I miss TWW Delves - wish they could still be relevant

I really miss the TWW delves - i don't know if it's Brann I miss, or because it was the first time they introduced delves so I hold fond memories of them, but the midnight delves just don't hit the same.

It would be so cool if Blizzard made a couple of past delves relevant in a week, and recycled it - like once a week there were four delves in past expansions that could be done on bountiful, and would give you the same gear as the present expansion delves...kind of like the rotation they do for mythic, but obviously more frequent than a season. Is that crazy?

Also, if you do past expansions, you get the past hero - I miss Brann man. Valeera is just...meh