Who else thinks that Jeremy was brought back to life to continue the destiny of The Five? Think about it. Silas didn't die the previous episode, so Qetysiah sent Hunters to finish their destiny. However, with the Veil closing and the Hunters defeated without Silas dead, may be Qetysiah completed Bonnie's spell to bring him back to life for the mission. Qetysiah was supposed to be an incredibly powerful witch and as seen in the previous season with Esther and even with Bonnie, dead witches can still perform powerful match from The Other Side.