Short one: Bungie directly leaving out "roadmaps" in the communication goals in their recent tweet and TWID should be linking dots of worry in your head. When you don't hold yourselves to roadmaps, you're opening yourself up for more delays or entire business pivots should you want/need. This could mean more delays or longer ones in the future, or even something as bad as staff being pulled and shifting focus to Marathon. Frankly, no matter how good this coming update is, we've never had a simple update be delayed like this. If something that isn't an entirely DLC is being delayed to make room for Marathon to find success, imagine how badly the DLCs could be delayed if they focus even more on Marathon if it DOES find success? Don't bury your head in the dirt, consider all possibilities and yes that includes bad ones too.