He is still in the same sect only now he is managed to rope in a hundred dudes as his disciple and he will help them get stronger to take over the sect (and eventually the worlds). He himself gets ridiculously strong really fast without ever training or needing pills, or cultivation techniques, and I mean patriarch level strong.
The MC joins a new school, he has the right to bring a dozen or so people as his entourage, those people will have the chance to learn some stuff in the school. This is something that is mentioned quite a bit, the MC will think about who to bring with him repeatedly, but he will never complete the list and the people that are brought as his entourage will each be showed off as if they are special they have ambitions, plans and it seems something is about to start with them... but then will be forgotten a couple chapters later and never be brought back ever again... because the MC has already moved on.
The MC makes a very important friend that belongs to a very important family and is quite close to him, the story around him and his family seems to gear up for something special until it fizzle out and is just forgotten.
The MC purposely gets close to a family that is enemy with another he wants to get revenge on... There is one scene with them, and again even though the characters he met there seem "special" as they get quite a bit of screen time and are described vividly... they just end up forgotten.
The MC will take on a disciple. This is a huge thing for a character in that world. The disciple has maybe five lines, is forgotten after 2 chapters and brought up only once 15 volumes later in one paragraph).
Weapons and tools can have souls when powerful enough and this is shown quite often, they will talk with the MC before being "bound" to him, will test him, tease him, challenge him, but as usual this is contained in one chapter and even though those tools/weapon might get used quite often, the fact that they can manifest a personality is forgotten. And so on.
I've got so many example of things just "dropped" it is unreal. But some are just too spoilerish even for being in a spoiler tag so I'll hold off here.