Doctor Strange in the Multiverse of Madness may be revealing a very different Avengers from the multiverse in new merch.
Doctor Strange will no doubt be interacting with many variant characters, from the multiverse. Variants have previously been explored in Loki and Spider-Man No Way Home. In Doctor Strange 2, things are about to get out of hand!
Official Doctor Strange 2 merch

This looks like a regular Avengers logo, until you reach what they have written in the description, spotted by The Cosmic Circus website.
Revealing Description
“Experience Doctor Stephen Strange in a whole new mind-bending adventure with Marvel Studios’ Doctor Strange in the Multiverse of Madness. This Avengers t-shirt showcases the Avengers logo for Earth’s Mightiest Heroes that might just be from a whole new multiverse.”
This description could be about The Illuminati; who are rumoured to be appearing. This may even be about the Guardians of the Multiverse, who we saw in the Disney Plus series What If…? Or something different entirely.
Who could be in this Avengers team up from a different universe?
Here are some of the rumoured characters for Doctor Strange in the Multiverse of Madness