Today’s Developer Liveblog covered new changes coming in Diablo 4's Season 4: Loot Reborn, including improvements to the amount of Veiled Crystals yielded from Salvaging at the Blacksmith.
Season 4 Developer Liveblog
As the usefulness of Rare items has become a topic of conversation since the Gear Affix reduction announcement, players have expressed concerns about needing to pick up Rare items for Veiled Crystal. In an attempt to address this, Salvaging Legendary items will now grant the same amount of Veiled Crystal as Rare items.