With speculation at a fever pitch following a series of tabloid stories and photos, BuzzFeed reports that Bruce Jenner intends to come out as transgender in a sit-down with ABC News' Diane Sawyer. In that planned interview, Jenner will also reportedly reveal the details of a new E! docuseries centered around his transition to a woman.

Jenner and ABC News are apparently hammering out the final details of the interview, to the chagrin of NBC Universal's own news division, BuzzFeed reports (E! and NBC News are corporate siblings.)

The Olympic track star and Keeping Up With the Kardashians regular has been photographed with longer hair and manicured hands, and over the weekend more firmly sourced (and trusted) reports cropped up in People and TMZ that the transition has been more than a year in the making.

Esther Jenner, Bruce's mother, confirmed to Radar last night that her son is indeed transitioning, telling the tabloid, "Right now I am more proud of him for what he's allowing himself to do. I am more proud of him now than when he stood on that podium and put the gold medal around his neck. He deserves all the respect."

E! and the extended Kardashian brood have been quiet about the reports, though Kim did recently offer a vague comment to Entertainment Tonight, telling the show, "I think that Bruce should tell his story his way... That story and what Bruce is going through I think he'll share whenever the time is right."

[Image via AP]