These are a few things I expect to come this year:
-New and Final Hero (Of course)
-Allow Heroes to be usable in wars (Definitely)
-League Bonus boost.
-New DE troop
-Lvl 5 dragon
-Private chat
-Allow the player to change from local global chat to International chat.
-Donation log.
-DE in single player maps
-New Single player maps
-TH 11 ( 2 yrs in the making)
-Bigger giants and make them attack in area dmg (1 tile)
-Dark elixir boosted spells (e.g. Lvl 5 lightning deals 10% more dmg when boosted by DE.
-Add more collectors or Boost their storage and production significantly.
-Titles that you get from completing achievements (e.g. Title: Farmer , gain by completing Gold and elixir achievements). Also this titles provide perks like , Title: Farmer , Perk: 10% more loot on every raid.
-Quest and Minigames
-Bigger base!
-Make hero Area of alertness in defense bigger
-Smarter A.I. (Queeeeeennnn!!!!! -_-)
-Goblin buff
-Reduce shield cooldown
-Valkyrie buff
-New spell
-Abillity to lock your base. (Prevents players from accidentally moving things)
-More Achievements!!!
-More things to spend gems on!!!!!!!!!

-New trap?
-Longer disconnection time due to inactivity ( 15 mins or more)
-Day and night.
-Make use of the shoreline in home base.
-New clan rank.
-Clan Tournaments
-More Clan member slots
-Bigger walls. The last update made some walls less intimidating.
-Champion league perks