Herbert hasn’t been seen on the island for almost a year since his defeat in November 2019! However, earlier today, the Club Penguin Rewritten team revealed that they were planning for him to visit soon.
I have plans for Herbert [to visit]-stu, Club Penguin Rewritten administrator
They didn’t go into much detail, but there’s speculation that any visit will be in November; that would be consistent with the team’s plan for more agent-related content this year!
As always, you can find the Herbert tracker here along with details about some of his visits, and that will be kept updated with any new information on his visits!