To be frank, Blizzard shouldn’t be tinkering with Classic it ought to be tinkering with RETAIL. The entire Classic project proves that the old dog still hunts, doing “upgrades” to it is just repeating the mistakes of the past.
Why are they not working on a sequel? They could take the old storyline up to wrath and have it in a single seamless game with the same classes and quests just greatly improved , learning from nearly two decades of being #1.
Blizzard and the fanbase should be pushing for a product for the next 10 years, that will bring in NEW players, repopulate the genre.