According to IGN, Halo 6 won't be at E3. Quite a big omission even if the series last few outings were a tad bit divisible with fans.
http://www.ign.com/wikis/e3/Games_Not_at_E3_2017
“Simple minds have always confused great honesty with great rudeness.” - Sherlock Holmes, Elementary (2013).
"Did you guys expected some actual rational fact-based reasoning? ...you should already know I'm all about BS and fraudulence." - FunFan, VGchartz (2016)