Overall, Timber Wolf is probably in better shape than when you last rode it. That said, it is only two seasons into a planned four year restoration project. The first drop to just before the upward helix has been rebuilt and is smooth. The helix was to be redone this off season, but the project was put on hold apparently, so nothing else has been done as of now. The helix is definitely in need of work and is currently the roughest part of the ride. Hopefully the restoration work will continue the next off season.
I wonder if it was placed on hold due to the Ghostrider renovation. I know GCI is handling the retracking, so I'm curious if WoF is debating whether or not to get the full Ghostrider treatment--full retrack + Millennium Flyers. On that point, could MFs work on the parts already retracked, or if they would need to be retracked as well. Wof is probably considering all of that.
On the other hand, I wonder if the retracking budget was instead placed into the two "new" attractions this year + revamped entrance.
I don't know but I rode GhostRider this year and man, it runs great. You wouldn't even know it's age.