As we see the current state of Shengshen Continent, without much contemplation, Dao Xuanji knows that Bazhun'an is about to re-emerge.
Xu Ai is not the focus.
The focus is how to subdue the Saint Servant once more, bringing stability to the five regions, as well as granting herself another chance.
"And with the Stairway to Heaven melted, apart from Dao Qiongcang and myself, and the family head, even a Holy Emperor cannot intervene in the affairs of Shengshen Continent."
"And the family head does not emerge, Dao Qiongcang does not aid me, leaving only myself temporarily powerless..."
In reality, what confines Dao Xuanji is the contemplation that attempting old tricks may very likely lead her into a trap set by Dao Qiongcang.
Her own brother has never been a foolish man.
Dao Xuanji knows this better than anyone.
Others might be unguarded, but what if Dao Qiongcang is wary of her?