Hyperbole aside, Dragonlance did not move the needle on WotC's stance on character options per setting:
Races may be limited, with an option to play non-natives with DM consent. Classes, feats and spells have not been restricted.
So far, Forgotten Realms, Eberron, Greyhawk (Saltmarsh), Spelljammer Wildmont, Strixhaven, and Ravenloft have not placed any restrictions on race. Dragonlance, Theros, and Ravnica have. Planescape certainly won't have restrictions due to its nature, and if past performances can predict future results, I wager some eventual Dark Sun book will remove some races but there will be nary a peep on removing classes. Steel your buttocks for when Athas allows paladins, warlocks and such.