The OAD of "Diabolik Lovers" will be bundled with the PS Vita game, "Diabolik Lovers Dark Fate". The game will be released on February 26, 2015. From CR Winter 2015 Anime Chart. Here's the key visual and PV of the game showing the new set of brothers. Photo taken from the official game site and PV from anime site.
Here's the embedded PV of "Strobe Edge". Check out the translation at ANN.
Check out the full video of the OP song, "My Sweet Heaven" by Gero, for the two OVA episodes of "Brothers Conflict". The episodes are entitled "Seiya" ("Holy Night") and "Honmei" ("Favorite" or "Possible Winner"). More info from CR.
Vote for "To All The Boys I've Loved Before" in the Final Rounds of Goodreads' Choice Awards 2014 Best Young Adult Fiction of 2014. I have a feeling that the chances for a movie adaptation will be higher if it wins this major award.