"I'm having a hard time figuring out how the 75%/25% split can only be applied to WMI assets and not WMIIC's, when WMI owned it all."
You are entirely correct. WMIIC has only one stockholder and it is WMI(WMILT). All of the escrow assets held by WMIIC must flow back to its sole stockholder WMI(WMILT)and split according to the 75/25 "negotiated" agreement.
WMIIC never had any public traded stock or stockholders, although I can see how some WMI common stockholders may wish otherwise.
Annex C to the Agreement was revised to clarify that holders of Preferred Equity Interests and Common Equity Interests will be issued Liquidating Trust Interests in Tranche 6 on account of those interests when Tranche 2 through Tranche 5 Liquidating Trust Interests have been satisfied in full, and that the distribution to Tranche 6 will be shared 75% and 25% pro rata between claims on account of Preferred Equity Interests and Common Equity Interests, respectively.
WHEN WMIH """MERGED WITH WMIIC imho this again changed the game and there is NOW no difference to be able to say what came from where To me this puts ALL of this theory to rest
FINAL GAVEL DOWN and only then will we know for sure