The cost to mine 1 Bitcoin will be 12.500 USD as of monday.

Updated
Right now it costs around 6800 USD to mine 1 BTC.
As of tomorrow the costs to mine it will go up significantly.
For mining companies, to keep mining the price has to go up for them to stay in the game.
If it doesn't than supply will drop because who would mine Bitcoin for a loss?
This shock in supply brings price up if demand stays the same.
Because price goes up, media starts kicking in so volume and price will start increasing towards new highs.
Note
Be aware: directly after previous halving events price dropped sharply
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