We don’t yet know when exactly the new season is going to air, as the precise premiere date has not been defined publicly yet. We do know that it’s supposed to come in “fall 2015”, although that leaves a lot of room for interpretation.
The show may or may not follow its previous release conventions, which could give fans some possible hints about where to expect it – but on the other hand, the producers may decide to make the release at another time in order to accommodate to a changing situation on the networks.
In any case, there is a lot of attention on this season of “Homeland”, and it’s going to be under a lot of scrutiny by both fans as well as the media once it releases. In all likelihood, the change in scenery will play out in favor of the production and freshen things up.