Originally Posted by
Coconut
I'd like to see the old continents updated, but the poor reception of Cataclysm and the vocal minority clamoring for vanilla servers are going to be a strong deterrent.
Another one is the large number and small size of the zones. There are a lot of unique environments and transitions to be done on every continent, with little space to develop areas with the same scope as newer zones. I think many areas will still look bad simply because of the draw distance and how out of place they are within the surrounding environment.
What I could see is a return to the old world in future expansions, one continent at a time, with the existing continents still accessible through the Caverns of Time. I'm not talking update, but a complete revamp, including some geographical changes, expanding zones that are too mall and bringing together others that are very similar thematically. They can place racial starting zones in the new continents where it is possible, and make use of their new scaling technology to allow players to level there.
Places like Dun Morogh and Loch Modan, for example, could be combined in a single zone, with an expanded Gnomeregan sub-area, same for Westfall, Elwynn and Redridge Mountains, Wetlands and Twilight Highlands, Blackrock Mountains & Searing Gorge, etc. Stranglethorn Vale could be expanded. This isn't meant to reduce the diversity in the newly resulted zones, but to reduce the need for artificial barriers between them and to smooth out the storylines. We've already seen that modern zones can have a great deal of thematic diversity within them (starting with Borean Tundra and coming all the way to places like Kun-Lai, Gorgrond, Val'sharah).
On the Kalimdor side, Durotar could be expanded or have sub-zones shuffled into the Barrens to reflect the true size of areas shown in Rexxar's campaign. Thousand Needles can be restored into a canyon with salt flats, and connected with Tanaris, with several elevators, bridges and rocketways connecting the pillars to the desert above. Gadgetzan itself could be expanded to better reflect its state in Hearthstone. Desolace should be merged with either Stonetalon or Feralas. Teldrassil should be redesigned to actually look like a tree bow, etc. Ashenvale has an appropriate size, but needs to be redesigned and have that ghastly volcano removed.
Now, the problem is that Vanilla, even with its much poorer graphics, took 5 years to make, while the expansions have to be done in 2. Even doing them one continent at a time might prove a bit too much, considering they now have bits an pieces added in TBC and Cataclysm as well.