I think Ray has to win it back here.
I like Chris Sabin, alot, but he's not long-term World Championship material, nor is a match between he and the winner of the BFG series winner going to sell their biggest PPV of the year. But Bully Ray and the BFG series winner? That will sell.
Looking forward, the winner of the BFG series has to be considered as well. While it hasn't been the case in previous years, it would be nice if the issue between the champion and the winner was personal. There's time, of course, but there's simply no issue between Styles, Magnus, Aries, or anyone else with Sabin....except Bully Ray. On the other hand,
all of them have issues with Ray; Magnus due to his involvement with the MEM and Styles with his 'recruitment' into Aces & Eights. With said issue, it makes for a much more organic match that way.
I say Ray wins this, despite the banned interference. Somehow, the hammer will again come into play, but this time, in Ray's favor. Ray wins this and goes on to headline BFG against either Styles or Magnus.
With Bully no longer Champion I could see a multi-man match at BFG between the Aces and the MEM, with the heel faction finally being defeated, and Sabin defending against Styles in what is sure to be a great match.
I think this happens irregardless. Even if Magnus wins the Series, and Ray is defending, that still leaves Angle, Sting, Joe and Rampage against Devon, Anderson, Knux and Brisco in a 4 on 4 elimination match, and if Ray defends against Styles, which I find more likely, you throw Magnus and Bischoff in for a 5 on 5 match.