Warning: This will be full speculation and fanboyism please remain calm
Meh: Star Wars IV: The Yoda Chronicles, Star Wars I - 3 remake, Star Wars 4 - 6 remake, X-Men, Rogue One, Star Wars VIII, Batman 4 (maybe based on LEGO Batman: The Movie?), Guardians of the Galaxy, Doctor Who, Superman, Superman 2, Overwatch, School, Empire, Ghostbusters, MCU ultimate experience, Spiderman
Warning #2: Now because I'm super bored I'm about to go in depth into all of them. They will also be in parts (Summer 2018, Autumn 2018, Winter 2018 etc.
Summer 2018:
LEGO Rogue One (a LEGO version of Star Wars: Rogue One)
LEGO Doctor Who ( a LEGO adaptation of key parts of Doctor Who)
LEGO Ghostbusters (a LEGO adaptation of ghostbusters)
Autumn 2018:
LEGO Star Wars 4-6 remake (must... upgrade... graphics!!!!)
LEGO Superman (he deserves the Batman treatment)
LEGO Spiderman (Spidermen beating up Spiderman villains)
Spring 2018:
LEGO X-Men (Lego Marvel Superheros style)
LEGO Overwatch (It's so popular, we need a game w/ a story line)
LEGO School (about guess what... school!)
Summer 2018/2019:
LEGO Star Wars VIII (plzzzzzzzz no 'where to build' option it drives me crazy, it's satisfying not having the option)
LEGO Batman 4 (What craziness will TT games bring on next?)
LEGO MCU ultimate experience (levels based on the enitre MCU phase 1-3, so heaps of levels basically)
Autumn 2019:
LEGO Star Wars 1-3 remake (better graphics all around)
LEGO Guardians of the Galaxy (Guardians of the Galaxy 1+2 and maybe parts of Avengers 3?)
LEGO Empire (go on epic missions to gather gold bricks to expand your empire)
Winter 2019:
LEGO Superman 2 ( a remake, with more character diversity like they did with Batman)
LEGO Star Wars IV: The Yoda Chronicles (remember that series? Let's go with that)
Writers Note: Sorry that this got so long and speculative, I just got bored and a bit carried away with the speculation!