| OFFICIAL FACTCore purpose | Preserve the original Classic content endpoint without progressing into an expansion. | Replay the Anniversary journey as a progressing expansion realm now centered on Burning Crusade. | Experiment inside the original world with Runes, altered roles, level-band endgames and reimagined encounters. |
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| OFFICIAL FACTWorld and level cap | Original Azeroth · level 60 | Azeroth plus Outland · level 70 | Original Azeroth, remixed · level 60 |
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| OFFICIAL FACTClass system | Original nine-class model, old talent trees and strong class constraints. | Burning Crusade talents and class changes, with Blood Elves and Draenei joining the roster. | Classic talent base plus Runes that add abilities and enable unusual roles and builds. |
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| OFFICIAL FACTProgression model | Horizontal play at the completed Vanilla content endpoint. | Expansion ladder through level 70, reputations, attunements, professions and raid tiers. | Phased level bands leading to level 60, with experiments changing across phases. |
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| OFFICIAL FACTGroup PvE | Classic dungeons and level-60 raid ladder, including the original large-raid structure. | Heroic dungeons and Burning Crusade raids beginning with Karazhan, Gruul and Magtheridon. | Reimagined dungeons as raids, revised level-60 raids, world bosses and new original-world encounters. |
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| OFFICIAL FACTPvP identity | Classic battleground and honor identity rather than arena seasons. | Arena seasons join battlegrounds and the honor system. | Battlegrounds and experimental outdoor PvP events alongside class-changing Runes. |
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| OFFICIAL FACTDeath rule | Normal resurrection rules | Normal resurrection rules | Normal resurrection rules |
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| OFFICIAL FACTCadence and permanence | Persistent preservation realm; no automatic expansion progression. | Scheduled expansion progression; the realm identity changes as content advances. | Seasonal, phase-driven laboratory rather than a preservation endpoint. |
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| EDITORIAL FITBest fit | Players who want original level-60 constraints and a long-lived character home. | Players who want Outland, tighter raid sizes, arenas and the first expansion’s class evolution. | Players who want original-world exploration with new class tools and redesigned encounters. |
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| EDITORIAL FITClassic+ research value | The clean preservation baseline: every proposed “plus” change can be measured against it. | The historical expansion answer: add a continent, raise the cap and revise systems. | The strongest shipped experiment set—valuable evidence about possibilities, never a promise of reuse. |
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