Yeah all the previous landmasses you named had been in the lore for years before becoming expansion content. Avaloren would be a massive departure from that trend, and be an odd choice given that we still have lore areas that have existed for years that we haven’t visited yet.
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Yeah, that’s not how it works. Again if Avaloren had been revealed a long time ago, it would make sense for us to venture there. Having us go there in 11.0 would be viewed as an asspull, especially given that every concept (even the leaked ones) coming out of it sounds like a Dragonflight patch instead of a new expansion.