Do you still own the XB? Just get it
I mean, if you're a fan.
I don't know.. don't want to tell you what to do. I don't mind exclusives. I just get exclusives from each. I have Bloodborne and the Uncharted Collection too. I generally get cross platform stuff on the Xbox, just because I'm invested in the platform in general (Xbox subscription).
No, it's a rather...amusing story. When I made the decision to go PS4, I pretty much told my best friend and room mate that, okay, Xbox is yours now. So what does she do, she decides to trade it in, lol. She's odd like that, still perfectly content with her Xbox 360 and the games she has for that. I was okay with it because I really was not all that interested in Xbox's exclusives. I mean there is Halo, Gears of War, and Dead Rising for me, and my interest in those are waning.
Even if I still had it though, I would still wait to get it now that I have made the switch. Because of the achievements/trophies. If I am gonna get it I want to get it for the system that I am more focused on, because I am really weird about achievements. I care about them way more than I should, lol.