i think Adolins gonna break with his mental struggle. its just how i imagined...
brandon made him a perfect guy, loved by everyone, most skilled in fighting, everything about him is right until that last part..
after WOR suddenly everything around him is changing, everyone close to him turns out to be radients, the girl he loves, father he admires, friend he trusts, even his sickly brother.. and he starts to think why not me? the most skilled fighter is not so great anymore compared to radients now..
also shallan realize she loves kalladin, and finally dalinar will know about the murder he committed and boom!
Adolin goes wild and may join some group like Ghostblood, or amaram's group... the most disappointing end??