At this point, I wish this topic was just blacklisted. There's a GIANT post explaining why it wouldn't be feasible and it's a terrible idea, with multiple quotes from Blizzard saying "Nope, not going to happen. Ever." There are multiple people explaining why it's not feasible, the majority on the subject are opposed to it, yet that teeny-tiny minority's only argument for it is based on short-sighted nostalgia, and the lack of experience of how to run a company.
The only "discussion" going on is how the pro-legacy crowd can think-tank it's way into some bullshit "Can't argue with that" point.