Rumors are abound, and Space Wolves in the mix. That would be a nice change of pace, after all who doesn't like the Wolves of Fenris? Looking forward to this one, and the formations it will bring.
Please remember that these are rumors at this point.
via Sad Panda
Tyranids in January is nonsense. Fyreslayers.
Imp. Guard in February is nonsense. Space Wolves.
Not counting possible 1-week things (think Seraphon), only multi-week releases.
It's not impossible there will be a FSE book, which may or may not be reprinting the rules from Mont'ka.
I wouldn't expect many miniatures with it. Probably just be the book, or a single clam-pack at most. There will be several 1-week things 2016.