Patch 5.4 Trailer, Predictions, and Hints

[Jandor]

I expect this not to happen. As Hydaelyn would want to have all the shards resplit to prevent reviving Zodiark (after his 2nd defeat). This theory only works if Zodiark can never be summoned again, but we all know primals can always be resummoned...

Normal primals can always be re-summoned.

Zodiark was made by ancient masters of creation magic sacrificing half their population though, I doubt sundered mortals are capable of recreating him in his all-powerful 'rewrite the laws of reality' form if he's destroyed.