It probally will be proven that the "monster" is something different.
For example; In Hayward Wisconsin some time in the late 1980's. A large Sturgeon was found dead, floating on one of the lakes in the area. It was over 20 ft long, and at least 150 years old. There had been sightings of the "monster" for ages. Guess what? The sightings stopped after the fish was found.
I was still impressed. Sure the "monster" was gone, but looking at that old fish really was impressive.