It is against the rules of writing to bring back someone from the dead, so I do not think that Tien will be in any of the next SA books. Yanagawn, the new prime of Azir was brought back from the dead but that was right after he died, and he was not a big character before that. Tien has a big impact on Kaladin and Kaladin may or may not have the most chapters, so that association makes Tien important. He will not be brought back from the dead.