Except this is Capcom we're talking about, and if you look at the RE series sales over the years I think they'll be more than happy to do another one after a hiatus of another 4 years. (Though if it takes another 4 years to make a reskinned RE5, like RE5 was a reskinned RE4 then they can take a running jump.)
It's marketing speak, nothing more. No-one wants to confirm a game that isn't officially confirmed in an interview, so they'll drop the 'We haven't decided' in there to dismiss confirmation reports.
~Foolish Flesh Creatures.....you shall all be Destroyed!~