Which MCU villains are recurring? Thanos is dead. Ultron is dead. Ego, Ronan, Obadiah, Killian, Hela, etc etc. Even Loki, the one character you might be able to call "recurring", was finally killed.

Loki was killed and yet, not currently dead. (You need to watch the Loki show. Spoilers.) Other MCU villains still alive: Red Skull, the Abomination, Justin Hammer, Baron Zemo, Yellow Jacket, Dormammu, the Vulture, Ghost, Yon-Rogg, the Supreme Intelligence, Agatha Harkness, The Kingpin, The Leader, Batroc, Ayesha, Mordo, The Shocker, The Thinker, The Prowler, Scorpion, Surtur, and the Grandmaster. There are also organizations like HYDRA and AIM. And even some of the deaths like Ultron and Mysterio were left ambiguous if they were actually dead.

I can't wait to see how you guys worked Jace, Chandra, and Liliana into a world that has nothing to do with them.

There is a chance none of them are there. Shocker!