We should have seen this coming. Trump kept saying that this was week X of your 15 week interview. With 18 players, they had to get rid of 2 people twice to make it to final 2.So next week will be week 12, and there are 6 players left. And in the promo, they said that one person will get a free pass to F4 (the winning PM). If more than one person is fired, then that means that everyone who wasn't fired got a free pass, so we know that next week is just a 1-person fire.
Here's how it should play out so far:
After week 12 - 5 players left
After week 13 - 4 players left
After week 14 - 2 players left (the interview episode?)
After week 15 - 1 player named "The Apprentice"
Just playing out what should be logical.