>>11983738BGV is actually this month, she's dropping one song on her channel and one on their album
from what I gleaned from deadbrap general, the actual guess right now is Reol, who seems to have become buds with Mori at one of the FT concerts earlier this year (around May)
she's been hyping working with some significant producer for half a year now, so this recording is most likely the finalization of that
that would be pretty big if that's the case, but not mainstream big