The Saxton Camp should have some water in the stream that the trail crosses near the camp.
If I understand correctly it seems you will be going from Saxton Camp to San Bernardino Peak which there might be some water still at Trail Fork Springs because there is no water anywhere else if you are going down the SB East Peak trail to Momyer.
The SB East Peak trail to Momyer is now a trace trail with a lot of down trees near the Momyer junction.
The SGWA trail crew is scheduled on 11/11/17 to try to remove as many trees as possible on that section of trail.
Hope you have a good trip and remember to bring extra water.