It was the Lost Tribe that i was thinking of thank for that. As for Thousand's of Sith escaping into unknow space did not mean that. The idea i was thinking on in my first post was something like the number of Sith that escape or went into hiding be around or lower to the number of Jedi that live after order 66. I will admit story wise i doubt it can or will happen also i do not feel it would fit with the current lore.