Any ending in which Lahabrea hasn't been messing with Estihogg from within his Eye is an inferior ending... How amazing a conclusion would it be for Lahabrea to have done exactly what he did with Thordan and Ysayle, and have Estihogg summon a Primal unto himself? We'd have Shinryu, then Omega can burst onto the stage to fulfill its franchise driven destiny... Shinryu gets defeated, Nidhoggs Eyes shatter, Estinien is saved! Then Lahabrea is freed and sneaks off to fulfill his true scheme; Summoning Zodiark unto himself. Providing a common enemy for us and Elidibus/Darklander.

It's either that, or Estihogg flew off to skies unknown to drop the revelation that Eorzeans, specifically Ishgardians, are summoning Primals, on Garlemald, setting the stage for a new conflict with Garlemald and giving Nidhogg the last laugh as he dies while Garlemald marches to exact his revenge for him... Ishgard will never know peace because the hammer of the Empire is about to fall down on it, well played Nidhogg...

Full End of an Era level Shinryu v Omega, followed by a 3.5 trial against Zodibrea is easily the more epic of the two, though... Involving Garlemald sets the stage up nicely for future plots, though... Lets just see how long I can refrain from table flipping as someone is no doubt going to question why Nidhogg and Garlemald would team up, despite me suggesting nothing of the sort... It happens every time, would be a shame to disappoint me now...