Was listening to this Conor interview with Eddie Hearn and when asked about the fight Conor said the fight vs Chandler and the date are announced and promoted as part of TUF when it airs and he said he is fighting by the end of the year. USADA has announced he will enter the testing pool in June so being a rocket surgeon I figure its Conor vs Chandler headlining the Dec PPV.
We know the Oct PPV is headlined by Makhachev vs the Dariush Oliveira winner.
Lets see if they get Jones vs Stipe done for November. That would be my guess.