Personally I think that next year the only Metroid-related game we'll see will be Federation Force, but there's a but, since NX is shure to be announced (and might also be released) I think Nintendo might just give us some hope for the franchise with an announcement of a new game (either 2D or of the Prime series) just to remember us that it's Metroid's anniversary.
It isn't far fetched to think that after the horrible backlash of E3 2015 Nintendo would want to give a sop to the fans of the series, so that while the anniversary can't totally be celebrated the fans know that they'll soon after be able to do so.
Note: The game doesn't have to be released in 2016, only announced.
I know, I'm only getting my hopes up :p















