No, fewer digital changes than the blu-ray. You are probably thinking of the HD version of the Lowry DVD master, which had a CG re-do of the car going off the cliff. The wowow is a newer 4K remaster done for the 2011 30th anniversary and has much more accurate color than the blu-ray.
I thought it had some recomped elements and also erased the guiding rod for the boulder?
Yes, it has the same digital tweaks as the DVD but not the additional ones added to the blu-ray or the CGI shot from the HD Lowry version.