I was just about to post this. Very interesting--well a bit more than interesting. As the article points out, Warner Bros seems the likeliest choice. When MGM was trying to find a buyer back in 2010/2011 Warner led the pack of potential buyers, but their bid wasn't high enough for MGM's creditors.
"Time Warner put in the highest bid of the three, the sources said. The company has been seen as most likely to walk away with MGM and its library of mostly classics, such as the James Bond franchise."
http://www.reuters.com/article/2010/03/23/us-mgm-urgent-idUSTRE62M03Y20100323
There's two things I can think of that Warner Bros offers over SONY: Television networks (TBS,CW, CNN, etc.) and the freedom from having to use SONY products.
The SONY email hack revealed that EON Productions had to turn down a lucrative cross promotion deal with Samsung because SONY exercised their right to have Bond use their branded cell phone.
"...Samsung was willing to give a $5 million fee for its phones appearing in the movie, but a higher marketing spend of $50 million to promote it."
http://www.businessinsider.com/sony-offered-daniel-craig-5-million-to-put-their-smartphone-in-james-bond-spectre-2015-4
It would be crazy if the franchise went to Disney. Doubtful, but still crazy.