Could Gavilar be a cognitive shadow?

[Lithanar]

So I was rereading rhythm of war and I had an idea. If gavilar was searching for immortality, and he had the ability to get void light he was able to create a sphere of anti void light and He was dealing with people from other worlds. Is it possible he was invested in some manner? If so could he be a cognitive shadow maybe stuck somewhere and the big reveal in the prologue of book 5 is that his cognitive shadow is somewhere in the cognitive realm maybe being groomed to be odium's champion? 

[Quantus he/him]

Yes, easily, especially if Odium himself were involved since that's basically what happened with the Fused. 

 

 

[The_Nimanator]

I was coming to ask this very question today! I was thinking that if he was a shadow, with his connection to Dalinar, could he be the one behind the two special visions that Dalinar had, similar to kelsier and spook?