Look, this isn't something we take lightly. Stephen and I have long conversations every time we get a scoop and have to decide what to report, how much to report, and when to report it. Our #1 priority is serving readers, but that doesn't always mean posting every little detail of every game we hear about -- we have to decide whether there's news value each time, and I will say this: though I lean towards a "report everything!" mentality, there are things I've heard but am not super interested in reporting because there's no news value in revealing them without more context.
"There's a new AC game coming fall 2015 and it's set in Victorian London" has a lot of news value, because we believe that our readers deserve to know what's coming next. "That AC game has a female protagonist" also has a lot of news value, especially in the wake of last year's controversy over Ubisoft and female character animations. We're reporters; it's our job to actively report this stuff, not sit around and wait until Ubisoft's PR team is ready to talk about it.
That said... if, say, I heard a few scattershot details about some new IP that Ubisoft's developing and will show at E3, there isn't much news value in just reporting those details, and in fact I imagine it'd serve our readers more for them to find out about the IP with proper context (and visuals!) at an E3 presser. So in that case, we might not be super-interested in spoiling a surprise just for the sake of spoiling a surprise. Make sense?