Torgast towers relevant with current level and ilvl matched challenges, just add more floors and gates?
You can still chill in your garrison, no one’s stopping you.
no thanks - you already have the ability to go back to that content. I really don’t like them reusing content it is so boring.
Personally I’d love mythic+ classic dungeons, with the same boss / trash / scenery, layout & all, but with a few ‘bonus features’ like some new mechanics input in, some snuck in adds, hidden bosses and whatnot.
Give people a big nostalgic dose, but spice things up a bit to keep everyone on their toes & entertained 
A Not so subtle player housing thread has appeared.