Irelia seems like a great candidate for being split into two champions.
From what I recall, Irelia's one of the higher candidates for a VGU due to the fact that she ... really doesn't hit her theme of some telekinetic sword dancer in the slightest. And I completely agree with that - all that theme boils down to is her E having more range than it'd maybe have if she used a normal sword. The one ability she has that remotely makes use of her telekinetic bond with her blades is her ultimate ... but only vaguely, because it involves her summoning a bunch of completely different swords to through down in a line, supposedly not even real ones but ones made out of spirit energy or something.
It's pretty lame, to be honest.
However, while she complete flops at the telekinetic sword dancer theme, her current kit does match up pretty solidly with the other half of her identity: a warrior-lich of Ionia that beat death through a combination of Ionian mysticism and sheer force of will.
That's why I feel like it would be plausible to base her reworked kit on her current one by dropping the telekinetic sword dancer theme and focusing more on the questionably alive yet heavily determined to stay that way warrior ( something that would be pretty baffling to do on the vice-versa, because there's basically nothing of value in it for the other theme ), which does sound like the kind of thing that would be one of the premiere examples of a diver, and replacing the Hiten blades with a more traditional ( if similar-looking ) sword. The telekinetic sword dancer is something I'd definitely want to see given better potential, but that could be explored with a completely new champion specifically designed for whatever remote-controlled blade shenanigans you guys come up with.
I mean, don't get me wrong. I'm completely expecting her kit to end up remarkably different either way. It's just that doing it this way seems like a way to avoid Sioning her, where she ends up as a completely different class, while still avoiding giving up on the fantasy of the telekinetic sword dancer ( which sounds like it'd be some kind of physical damage mage far more than it sounds like a diver ).

Q