Quote Originally Posted by Cons View Post
Hopefully this answers your questions.
http://http://www.spacetimestudios.com/showthread.php?371984-Hotfix-08-30-16-Egg-Zavier-to-Retire-Vendors-Remain-for-Duration-of-the-Event&highlight=zavier
it states that the egg-savier "need to recover", so it seems that it will come back