Originally Posted by
ItMe
IF they did this, the main way I think it might go down is by something happening in the story (like surmounting the shards all being messed up & having them linked together in a symbiotic way that doesn't lead to calamities as they're absorbed into The Source, or whatever) where the WoL ushers in a new era where everything is in balanced and the worlds are flourishing... and that manifests as a graphical / system upgrade.
Not that they'd need to tie the change into the lore, but it could be fun.