Wizards of the Coast has released Heroes of Krynn Revisited, a revised Unearthed Arcana playtest document. After studying player feedback, WotC revised the kender race, the Knight of Solamnia and Mage of High Sorcery backgrounds, and several feats for characters from the world of Krynn.
Kender are no longer associated with the Feywild. Instead, they have been revised to be more closely aligned with the kender from Dragonlance Adventures. The Knight of Solamnia feats have been revised to make use of superiority dice.
The Lunar Magic sorcerer subclass that appeared in the previous Heroes of Krynn article scored so well that it is moving forward in WotC’s development process and doesn’t appear in this document.
Jeremy Crawford elaborates on the changes in this video.