A forgotten Bilgewater character post retcon

The Harrowing calls for thee.

got also ignored.

These 2 simply didn't play a role in the event.

Can I join the bilgewater event? No...? Okaaaaaaaaay.

Whatever happens between Bilgewater Act 3 and Nautilus I hope it works and is not spontaneously cheesey.

I like to think he (or it) was 'the never-ending extra-planar energy' of the Noxus warship engine where Gangplank "stole the Leviathan, Swain’s personal warship and the pride of the Noxian fleet". Somehow it befits Noxus reputation for necromancy and war. None of the black oozing goo crap.

Nautilus isn't one for blood feuds.

Drama like that just weighs him down.

Nautilus got the Lore revamp from the Harrowing tale.

I get the feeling we will see him in the Harrowing again...

Nautilus is a Bilgewater character by way of thematics and association, but hardly qualifies as a character with any ties to the place. While his lore needs to remove the reference to the Institute of War, there's no reason it can't stand as his permanent lore.

And, as Kyoki Shinkuro said, he may very well materialize in the Harrowing again. He did get a brief reference in the last piece of lore we got about the Black Mists, so we may pick up with Naut this October.