As I noted in the PWInsider Elite section, Bruno Sammartino's induction will headline the ceremony. The company hopes to have Arnold Schwarzenegger induct him, something Bruno intends to talk to Arnold about when he is inducted into the International Sports Hall of Fame during the Arnold Classic.
In regards to the other scheduled inductees, it's expected that Terry Funk and/or Jim Ross (possibly both) will induct Mick Foley. The company is considering Maria Menounos for Bob Backlund as the two are friends and obviously, WWE would love for the celebrity rub. Sgt. Slaughter's name has also been brought up for Backlund as has, interestingly enough, Roddy Piper.
In speaking around to those in the company, it was believed Donald Trump would most likely be inducted by a member of his family, possibly Ivanka Trump.
There's no word on Trish Stratus' inductor yet, although as I noted in the Elite section, Lita and/or Dave Finley would make the most sense. They could also go with Edge as they are both from Toronto and were trained by Ron Hutchison at the same school.