I've been saying all along that COP wasn't going to close for good, mainly because so many people raised opposition to the idea of closing it.
However, though it "may" be true, I seriously doubt that CM was correct in that the attraction remains open because they just now found something in Walt's will. First of all, I find it doubtful that they just now found something like that, after all of this time.
Also, the way companies are run these days, it's not about the park as much as it is about "Big Business". If the management at WDW (up to the top) found a valid safety or financial reason for closing the attraction, they would, regardless of anyone's will.
If we saw Walt's true will, I bet we would be amazed at how much things are not in accordance to it.
I think the attraction is remaining open because of 2 major reasons: 1) They knew that people were upset with the rumors. 2) I think they truly planned on closing it after Stitch opened but, when Stitch didn't get the reviews they were looking for, they decided to keep it open. This carpet and interior work did not take form until after Stitch was opened. I think the Timekeeper becoming a Meet and Greet also had something to do with it, as Tomorrowland would be looking very anemic.
Also, someone did die (as was questioned earlier) on the exterior of the attraction when it was in motion, but I was told that was in California at
Disneyland when it was there.