You knew this was likely... of course this is still a rumor.
Please give this plenty of salt right now.
via an anonymous source on Faeit 212
Heard, that Vigilus’ call for aid will be answered by...
A brand new chapter of the Ultima founding i.e. a NAMED Primaris chapter
with special characters, unique strategems and warlord traits etc.
Not a huge model release apparently, beyond the new characters and a new
repulsor variant, but who knows?