I have to say, if it is all a marketing ploy and it turns out she is in the film and was all along, they will have succeeded in pulling off one heck of a stunt, because it seems most people are convinced she's not in it.
What's starting to become clear to me though, is that they really don't want us to know for sure either way. They want us in those theater seats opening night. I'll be really surprised if the 'definitive' answer we get in Empire is really as definitive as they say, or if it'll just lead to more confusion.
That, coupled with the fact that there's always the possibility that things could change in the editing process between now and May, and I'm thinking they just may refrain from commenting at all on the whole Rogue issue, as they've already been doing for the last month. Why would they need to? They've successfully thrown everyone off.
If she's in and they didn't want people to know, they've now got most convinced that she's been cut. On the other hand, if she's not in it, no one will be shocked, because they already told us that. Also, by not commenting on it further (and by having already covered their butts by saying Rogue will still appear in promotional materials), they can't really be accused of being outright dishonest about that, either.
Again, I'll be surprised if we actually get a 'definitive' answer in Empire.