if they kill Monroe I (might) stop watching.

My personal policy is not to take promos seriously (they take bits and pieces of the ep that will make you wonder until next week). 

They have at least one episode a year where they hint that something bad might happen to Monroe, but I don’t think you have to worry too much. During the premiere one of the big wigs (I think it was Michael Golamco?) said that we have a lot of Monroe and Nick bromance working together moments this season. And he’s been included in descriptions for upcoming episodes for the season. 

I (personally) don’t think you have to worry about Monroe 🙂