The Winter (Jan/Feb) will be weaker than 2014. But Spring looks to be on-par with 2014, there will be atleast 5 100m+ grossers (Zootopia, BvS,Jungle Book, Huntsman, Allegiant,) It's also possible that 10 Cloverfeild Lane, Miracles From Heaven, The Boss or My Big Fat Greek Wedding 2 breakout with 100m+
However, summer looks way better than 2014. 2014 July was what killed the entire summer, it was very weak. The biggest releases were Dawn of the Planet of the APES(208m) and Lucy(126m). This July has Star Trek Beyond , Ghostbusters, Bourne 5, Ice Age: Collison Course, The Secret Life of Pets, The Legend of Tarzan and The BFG. There are possibly 2 or more 200m+ grossers in that group.
Fall 2016 should remain within the averages, it's doesn't look any weaker or stronger than recent years. There are always some wildcards around this time of year that can break out. ( The Girl on the Train, The Magnificent Seven, Jack reacher 2, Sully, Deepwater Horizon or one of the untitled horror films could do 100m+)
Holiday 2016 is what will make or break the year. I expect several Oscar bait movies and maybe one more big release to get slated for December so i cant really gauge how its going to turn out at the moment. Especially since most of these November and December films dont even have trailers yet.