You guys missed the most subtle and clearly then the most important revelation in this blub. They capitalize He when referring to Kellhus. This means he will ascend to God-hood and so TSTSNBN is going to be titled God-Emperor of Eärwa.
that is interesting ... hm ... Kellhus is God and has not forseen something. if there is something unexpected about eating sranc meat, it won't be that it makes you lusty like sranc or that it has similar effects as qirri. Kellhus must have tested eating sranc on soldiers before now.
but i guess it could be something like Mog returns and is able to control the Great Ordeal because of the sranc within. i can't remember who, but someone else suggested that it might freak out the nonmen when they see men eating things with nonmen faces. maybe Kellhus underestimates the effect it will have on himself or Kayutas as in dunyain + sranc =

hell Kellhus may even be able to use Mandate knowledge--there could have been a force during the First Apocalypse that was forced to eat sranc. maybe that's what happened in Cil-Aujus. the mansion is surrounded, so no supplies, they eat sranc and are then able to repel the No-God? or maybe Mog just withdraws at that point to let the sranc-tainted men and nonmen tear each other apart
next time Kellhus warps back to Momen, he should bring some raw sranc thigh for little Kelmomas!
one last possibility--the Consult lets the Great Ordeal eat sranc until the GO is deep into the wastes of Agongorea, then the Consult has the sranc withdraw entirely and it's like crossing the Carathay all over again. could be that the GO is too reliant on sranc meat AND sranc blood for water at that point.