Source - Wrestling Observer Newsletter
Since Undertaker returned at Unforgiven last month he has been banged up pretty badly. He worked house shows two weekends ago, but has only done a few matches since returning at the pay-per-view. There has been a vague direction of Undertaker being back if his body can hold up. Before his biceps injury, Taker was scheduled for the longest title run of his career.
Right now the working plan is to have Edge return to wrestle at Survivor Series. Last week WWE estimated he would return in late December/early January.