Seems to be a lot of FUD going around about the thirdening

As title says, there seems to be a lot of FUD in regards to what will happen to price and APR.

I would like to have a formal discussion here to get people's feedback on what the thirdening entails and how it could effect the price. I'm aware that Apr will most definitely be going down. But what about price? What are the driving factors for it to go up, not down?