Thanks foxs. As we reach this stage in the story, I can fully understand why this novel is notoriously long. We still have SO MANY story arcs that are underdeveloped/not developed!
Anyway, considering the multitude of very powerful people that are finally appearing in the story, I believe that the boys and their friends are due for a power upgrade soon so that they can still handle a fight.
KZ - Either Song Que actually teaches him something, or he has a brief exchange of pointers with Song Que and figures out something new on his own.
XZL - SQX teaching him Yue Shan's skills, possibly including Huan Ri Da Fa. Huan Ri Da Fa seems to be something that ZYY and Zuo Youxian knew about, so it's probably something remarkable. Yue Shan might have lost badly to Song Que, but I suspect Yue Shan was top tier - close to ZYY power, making him probably slightly stronger than An Long.
Also, XZL seems to be gravitating towards Buddhist power. Maybe Jing Nian Chanyuan side or the 4 Holy Monks will teach him something - like Huang Yi's version of Thousand Hands Buddha kind of palm skill.
To maintain balance of power, it should also mean that BFH, HXB, YXY are also due a power upgrade. If YXY gets the Immortal Print Scroll, it'll be interesting to see how BFH and HXB get their power upgrade.
To digress, I don't believe BFH can take on Bi Xuan at this current moment. He'll probably need the power upgrade to do so.