Up until a few days ago I thought we (XB1 owners) were going to have to wait until late 2015 for the DLC. Then I found out it was just a single Strike..
I couldn't care less about a single strike mission. I've heard the existing PS exclusive strike is rubbish and, even if the new one is awesome, I won't be losing any sleep over it.
If we were going to have to wait a year for updated story content, or increased levels, that would be different. As it is, I'm delighted with the way it's worked out compared to what I was expecting.