Anyone have an idea of what Nasus is doing?

I'm curious about what Nasus is doing in the current lore.I know he's aiming to release his Bro from his madness,but is that it?

Is he simply wandering around Runeterra,or just the Shuriman Desert?Does he get involve with other people or is he more like an observer? Azir back,so does that mean Nasus is helping him with the GREAT SHURIMAN RESTORATION OF SHURIMA project,which needs some more SHURIMA in the name BTW,or something? Or is he so focused on his goal of killing Renekton that he can't be bothered with anything else?

I'm just curious what do people think what life the Curator of the Sands is living.Personally,I think a good idea for a story arc is where Nasus help some kid find his brother because he understand how the child feel.And along the way they run into Renekton & blah blah blah.Just my idea for a story concept that allows us to learn more about Nasus CHARACTER. Anyone have their own ideas?

And no,I'm not asking the lore team to get involve.I'm not going to hold my breathe for them.I know it won't happen.

EDIT:Reading through the comments so far,many agree Nasus would fall along the line of a silent observer,who silently observe events rather than involve himself.People say he would focus on dealing with Renekton above all else. So,new question:What type of stories can Nasus have in this new lore?I'm sure more can be done with him than his confrontation with Renekton.