Evoking more power than "Titan" [closed]

I'd go with "Olympian."

But not because of the Olympic fever these days.

In mythology, the Olympians are the younger generation of gods (including Zeus) who overthrew the Titans.

Aside from this, the word "Olympian" itself means, among other things:

surpassing all others in scope and effect
far beyond what is usual in magnitude or degree
majestic or godlike in manner or bearing

all definitions from the Free Dictionary

If Supertitan is not a good fit, I would recommend Leviathan or Kraken as they have ... naval connotations and also sound suitably awe-inspiring. Behemoth is also, IMO, a good fit.

Besides the above two you could try one of:

Uranus (progenitor of the Titans),
Saturn (of which Titan is the largest moon),
Tartarus (where the Titans were imprisoned)

Other generic synonyms of "titan" include mammoth, and Goliath.

Disclaimer: my answer is only valid within the universe of Eve Online, given the question's context.

Naming is hard, especially in game designs. The proper name needs to evoke the right emotional response, given the context of the universe players are put in.

You described perfectly why Titan is the right name for the current biggest ship class. Killing a "Titan" also yields a big sense of accomplishment in game for players, not just for those who finally manage to create and pilot one.

Each player race's Titan is appropriately named too. For example, Amarr, the super religious race has their Titan named Avatar, while the chaotic Minmatar's Titan is called Ragnarok.

Titans are demi-gods, so the next natural upgrade would be God. But as you said, it'd be controversial and it wouldn't have a nice ring to it.

I do not believe CCP, the maker of Eve Online, will add a "bigger(physical size)" ship class in the future. However, I think it's possible they will add another class that's equally epic, for a different fleet function.

My vote for a new super ship class is "Angel." It has a more supernatural ring to it than Titan. It's also versatile since an angel can be protective and destructive. Although it probably makes more sense if an Angel ship is a super logistic ship.

CCP doesn't follow Greek mythology for all of its naming conventions. There are a lot of famous biblical angels' names to choose from. For example, Amarr's Angel can be "Ariel" or "Appoloin."

In practice, I think Angel would work great in Eve player lingo too: