well crap, the subject line was supposed to be 2017 and I see no way to correct it or delete the topic.
OK, while the subject line is made without actual knowledge that WOTC/Hasbro isn't going to be at Gen Con in 2017, given their current track record it certainly seems unlikely they will be appearing. I post this statement in the slim hope that other people on the forums, facebook, and other social media outlets will let WOTC know their lack of attendance is certainly missed. Contacting them needs to remain civil as belligerence rarely carries weight in an argument when you are against the odds.
As an attendee of Gen Con since 1989 and seeing "the castle" along with everything else that was TSR in the late 80s and early 90s, I cannot deny my sadness in the disappearance of Gen Con's truly formative presence. I hope against hope they will return for GC's 50th!