Knowing that there are big institution and companies that are backing up the bitcoin system, I am sure that they won't allow the value of it to suddenly fall. There might be a correction but it will still recover since anyone from the investors don't wanna lose anything. The worst case scenario would be if the whales decide to leave the system, the price will surely fall. But on my opinion, there are lot of people who hold big amount of it. So no one can truly manipulate it for long term.