Are decisions from Witcher 2 imported to NG+?

I started new playthrough NG+ using save from my first normal playthrough. For that I imported save from Witcher 2 where Letho was alive and I did interacted with him (do his quest and convinced him to help with the Wild Hunt) in the first playthrough. But he is nowhere to be found in the NG+ started by importing save from the first one. Does that mean that the world state used for first playthrough is not used in NG+ if you import save from Witcher 3?
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