Considering the massive lore changes Varus received in order to integrate them into his backstory, I think Val and Kai deserve to be in the splash art too—hell, even Kayn has his Shadow form and Rhaast in the background of his, seems only fitting for Varus to get the same treatment; maybe something like this?
Because:
a) "Varus", right now IS Val, Kai and Varus, the tree of them fused, not separated. b) Unlike Kayn, we dont see the humans separated from Varus in the game unlike Shadow Assasin and Rhaast who are playable.
Also, its important to notice that if Riot wanted to focus on Varus as the Darkin being, they should put more emphasis on the bow... but the bow is in the background... and there are two things that are better seen in the new splash art than the old one... those 2 things are: hole that left the arrow that the darkin shoot to Kai and the pendant.
https://youtu.be/vzNcSvKCOyA?t=163
I think that those 2 things are what integrate them in the splash art.
