I know that we have 3 dlc coming out one for $10 the next for $5 and the following for $25 bringing it to a total of $40 but the season pass is $50. Is there more coming out that I don't know about?

Yes, there will be more later. The season pass was originally 30 bucks, and you could have gotten it for that price before March 1st. They raised the price because they decided to do more content than they originally planned that will be announced after Far Harbor.

Yes, there will be more later. The season pass was originally 30 bucks, and you could have gotten it for that price before March 1st. They raised the price because they decided to do more content than they originally planned that will be announced after Far Harbor.