I have heard from a few people that the grind of being on the road after all these years isn't exactly something that he enjoys. I know he has told people close to him that he could definitely use a break after all the years he has worked, plus the injuries he has suffered and rehabbed.
But, I have also heard people for years say that they are leaving next year, in two years, etc. Then next year comes and they change their mind. The wrestling business is legendary for its retirements that end up being a break.
Will he leave the business next year? I can't say one way or the other. It wouldn't shock me to see him at least take some time off however. After all these years, he has earned it.