'The Blacklist' Season 4 Release Date, News & Update: Raymond Reddington, Katarina Rostova Were Lovers? Alexander Kirk Saving Liz Keene From Her Mother?

"The Blacklist" Season 4 has mysteries to reveal as Katarina Rostova (Lotte Verbeek) resurfaces in the world of Raymond Reddington (James Spader) and Liz Keen (Megan Boone). While "The Blacklist" Season 3 finale seems to point to Alexander Kirk (Ulrich Thomsen) as the S4 villain, Constantin Rostov may in fact be protecting Liz Keen from Katarina Rostova.

"The Blacklist" Season 4 premiere has promises from S3 shockers to fulfill, including explaining why Alexander Kirk kidnapped Liz Keen, causing Raymond Reddington to rage. While fans persist in believing that Raymond Reddington is the real father of Liz Keen, Parent Herald cites reports where Jon Bokenkamp confirmed that the issue had been settled in "The Blacklist" Season 1.

#bts Take 1, Season 4: we reveal the silly side of Liz #TheBlacklist @nbcblacklist https://t.co/w3B1wfP9ld

— Megan Boone (@MeganBoone) July 27, 2016

If Raymond Reddington is not the father of Liz Keen then Alexander Kirk, whose real name is Constantin Rostov, was telling the truth in "The Blacklist" Season 3 when he told Masha Rostova that he is her father. Understandably, viewers are suspicious of why Alexander Kirk showed up in "The Blacklist" Season 3 finale and why his mode of reintroduction to Liz Keen is kidnapping.

CinemaBlend proposes that Alexander Kirk is not the villain that "The Blacklist" Season 4 will unveil. Instead, Alexander Kirk may in fact team up with Raymond Reddington in "The Blacklist" Season 4 to protect Liz Keen from the real villain.

Melty recalls that in "The Blacklist" Season 3, Raymond Reddington received a painting from Katarina Rostova where Liz Keen stands over the grave of the FBI asset. A clear threat has been issued by Katarina Rostova to Raymond Reddington, but why was Liz Keen included in "The Blacklist" Season 3 artefact?

Entertainment Weekly reports that Katarina Rostova is rejoining Raymond Reddington, Liz Keen and Alexander Kirk in "The Blacklist" Season 4. Although Katarina Rostova is only supposed to physically appear later on in "The Blacklist" Season 4, could she be connected to any danger posed to Liz Keen and Raymond Reddington?

On a side note, Katarina Rostova made a very cryptic appearance in "The Blacklist" Season 3 ("Cape May"), which may or may not indicate her real history with Raymond Reddington. While "The Blacklist" Season 3 episode was touching, could hallucinogens have been hiding the truth about Raymond Reddington and Katarina Rostova?

Were Raymond Reddington and Katarina Rostova lovers? A romantic link between Raymond Reddington and Katarina Rostova would explain the obsessive protectiveness Red exhibits over Liz Keen in "The Blacklist."

NBC airs "The Blacklist" Season 4 premiere on Sept 22. Who among Raymond Reddington, Alexander Kirk aka Constantin Rostov and Katarina Rostova is your bet for "The Blacklist" Season 4 villain?