What things could happen with the btc price when the block halving occurs? will the price go down due to miners cashing out? or will the block chain slow down due to miners shutting off their mining equipment? will the price go up because of less daily bitcoin created? what will likely happen?
Follwing the previews trenda bitcoin is increased when it got halved from 50 to 25 so i am pretty sure it's simple supply and demand..Supply will be halved next hear(12 bitcoins each block) so we can expect increase in the bitcoin as many of us wants it 
but yes some miners can quit mining because of high difficulty in mining and less reward but i think it won't affect bitcoin network and price at all as there are so much miners and miner farms that are performing mining continuously
