Kormir didn't leave without a parting gift. After all, Solomon was there to help her wage the war that would lead her to godhood. He was given the chance to see Elona rise from the ashes: he would live for over 250 years.
Once a dervish, then a resistance fighter against Joko, then a drifter, now a hero once more. The Sunspears have not been forgotten.
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So, Solomon is literally just a remake of my GW1 dervish, now as a revenant. As I typically do with these kinds of characters (Solomon and one other), I found some justification for them living so long. Typically some blessing from a god. Also he and Koss were tight.
I have had so much fun with this design. He's just so cool and photogenic.
And yes, I have the dervish outfit for him, but I think the armor looks better most of the time.