UPDATE: The New Mutants section has been completely removed from the D23 website posting. So it was a typo.
Before presenting this, be aware that this is likely a typo on the part of the D23 website, which might be fixed in the future. If it is, this story will be updated to reflect that.
Today the official Disney fan club, D23, updated their website with a story about new trailers and under the The New Mutants trailer they say it’s a “new addition to the Marvel Cinematic Universe”:
Again, this is most likely a typo as The New Mutants trailer doesn’t feature the Marvel Studios logo in front of it like all MCU things do. So we’ll keep an eye on the page to see if this changes…or not.