How does it make sense that a decision made in November (letter was circulating about a week ago) would be in the October OB? FDA will let AMRN know NCE status soon privately and buyout competitors will find out as well. FDA will officially list decision in November OB, because, well, that's the month the decision was made in. Notice how when the market figured this out the stock rebounded 5%.
They don't privately release their decision. Everyone finds out at the same time. Money rides on these outcomes and the knowledge of what the decision is so they are not going to selectivly release their decision. I do like your logic of the apparent November decision not being released until the November OB results.