Could you describe why Davesprite is dead in the current timeline? I don't remember a mention of that.

Yes, well when John made his deal with Typheus it came at a price that price is that someone would have to suffer. John didn’t know the specifics but the person that had to suffer was Jade. So Retconned LoWaS exploded killing Retcon John and Davesprite causing Jade to spend the next three years alone.