Are the Buffalo Bills one of three teams that could be Hard Knocks?

Hard Knocks is coming around the corner and the Buffalo Bills and Rex Ryan are one of the finalists. According to Tony Grossi the Bills are one of three teams that could be on HBO Hard Knocks.
Surviving the Hard Knocks cut: At NFL meetings in late March, the Browns emphatically stated their opposition to appearing on HBO’s Hard Knocks.
Their No. 1 point was to protect quarterback Johnny Manziel’s private recovery from an offseason drug and alcohol rehabilitation stint.
Although the Browns are one of nine NFL teams eligible to be “drafted” for the series, a source told ESPN Cleveland that the Browns’ request most likely would be granted.
The source said that NFL Films, which produces the series, does not want an unwilling participant. Potential participants are the Texans, Redskins and Bills.
If the Bills are chosen as the featured team, the Browns would have a cameo appearance, after all. The Browns and Bills will have joint practices at St. John Fisher College in Rochester, NY, for a couple days prior to their preseason meeting in FirstEnergy Stadium on Aug. 20.
The featured team on Hard Knocks should be announced in June.
Bills beat reporter says the Bills are out, Which one is it?
This is per Sal Capaccio from WGR 550: Re: ESPN Cleveland report that Bills are still a candidate for Hard Knox: NFL source told me Bills are firmly out, but keep an eye on Texans

NFL Draft Diamonds was created to assist the underdogs playing the sport. We call them diamonds in the rough. My name is Damond Talbot, I have worked extremely hard to help hundreds of small school players over the past several years, and will continue my mission. We have several contributors on this site, and if they contribute their name and contact will be in the piece above. You can email me at nfldraftdiamonds@gmail.com