Board Thread:Questions and Answers/@comment-76.102.30.110-20130715013213/@comment-79.68.220.217-20150126025653

90.11.10.119 wrote: Just to remind you (if you're not real fans knowing every bit of the saga) : In MGS 1 (PS One) is an enemy called Decoy Octopus (disguised as the DARPRA chief). Master of disguise, he is well known to look, without his mask, like "a heavily burned person" (source: MGS Twin Snake and the PS3 MGS Database).

Looks like Skull Face will survive and become Decoy Octopus (cause I don't see Kojima using twice the same exact words to describe two different characters.

If he is a returing character and Kojima likened him to Clayface from Batman Decoy Octopus seems the most plausible.