deinol , 
I’m most of the way through Midnight Tides, but I have two lingering questions from House of Chains.
First, does the random Forkrul Assail that Karsa Orlong freed ever show up again?
Second, who is the random (immortal?) guy in a tower Karsa Orlong met and does he become important?
There are sometimes threads in this epic that are abandoned, and other times ones that are long dormant.