I'll take what I can get at this point with a revamp. I just feel like Blizz absolutely have the capabilities to give us a full world revamp, especially if they have been working on it for years.
People tend to point back at Cataclysm and say a full world revamp can only hinder the rest of the game, but that isn't true because Cataclysm was received pretty favourably up until Dragon Soul, which tarnished its reputation.
I want new zones and revamped old zones. I want a reason to level fresh new characters again. I want those zones to have relevant max level content in them, in both the form of max level campaigns and to interact well with the fresh batch of new zones.
Whilst I would definitely be content with a Dragon Isles expansion complete with a revamped Northern Eastern Kingdoms, I won't be able to help but feel disappointed at the same time because it is definitely in Blizzards capabilities to pull off a full revamp.
I genuinely don't think it's expecting too much.
However, if Dragonflight is a combination of Legion and MoP with SOME small iterations of content from BfA and SL, then I'll be happy. Just not as happy as I could be, ya know?