And I don't think 'pristine' is the answer either, but it's definitely a legit starting point. Personally I would settle for 1.5 (why 1.5? Because AV before they fucking ruined it, preserves world pvp TM v SS before BG city npc's basically destroyed world pvp forever) with some client-side upgrades. They would have to update it to DX12 etc. I heard someone mention Battlenet - lol, no-one gives a fuck about b.net. Without crossrealms b.net becomes moot.
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nah, the nostalgia wears off after a few weeks, then you start getting into the game again, which is after all, what all of this is about.