8 chapters makes sense. One every 2 weeks until its release at the beginning of November. Unless they plan to take a break in september, then its 6.
I wouldn't count out Bloody Tan, sort of. I was thinking about it, could a copper feruchemist pour personality into their metalminds along with memory? For someone as twisted as Tan, he could push his personality along with some choice memories into his metalminds at the time of his death (possibly leaving him an invalid at that moment) and then a devout follower or relative could pull those and thus pull Tan back from the dead to have him partially "posess" them. Same inflections and thought process, memories, mixed with the hosts. Wax would key in on those inflections but wouldn't be able to put a finger on exactly from where since Tan is dead and this is for the most part a different person.
Psychologically the line between memory and personality and what forms which or vice versa can be pretty blurred.
