Sensei will be receiving a new background – likely when he next visits – on Club Penguin Rewritten: the Elemental Background! It’s completely custom and even features the grey puffle.
An administrator, hagrid, also explained that the reason Sensei hasn’t visited yet is due to a “small bug”, but it will be released “at some point”, which will most likely be when he next visits.
Although the team hasn’t officially released this background yet, they stated that it was okay to share. Thank you very much for reading, be sure to check back for more of the latest Club Penguin Rewritten news and guides!