It has ten chapters to set up its ending, more if they feel they need it. They do not want another Naruto ending on their hands.
Next chapter is deal with the Todoroki family. and it seems Shimura, Tenko is alive...my guess is when he got AFO's quirk his original quirk was returned to him. It was implied the super regeneration was originally his and the decay was a transplanted ability. Wouldn't be surprised if he has OFA and gives it back to Deku.