Hello! Current Con Chair here!
I'd personally love to see links to these rumors so I can find out who is starting rumors about me. I am still a huge MLP fan and have never wavered. I've been a fan since I was a little girl collecting G2 toys, longer than many fans on this forum. I get excited about new episodes, just like everyone else, and I know all the lyrics to the songs. Although I don't think I should have to defend my love for this show or this fandom as I am currently chair of the largest fan run pony convention in the world, which I feel should speak for itself.
As for the comment on upper management changeover, almost all of the few who stepped down are still involved in the con, just in a smaller or different capacity. Those who stepped up were already active members of our existing staff who know BronyCon and what we are all about.
The thought process to expand started long before I was chair. We have just been waiting for when it should be done. I come from the unique position of heading the Event Programming department for the last four years. During my tenure there I went through over a thousand panel submissions and suggestions. Many of those submissions were not pony related or were more pony adjacent. This is not some crazy idea I came up with on my own and am now forcing on the con. This is something that has been discussed extensively and not done lightly on some whim.