If McGregor's coach is to be believed, this may be the last time he fights at 145 lbs. According to Dana White, Jon Kavanaugh told him that McGregor is never making 145 lbs again.
Conor cuts a significant amount of weight to make featherweight, and the UFC president confirmed on Fox Sports 1 that if McGregor does choose to move to lightweight, it will likely be a title bout against the winner of Rafael Dos Anjos vs Donald Cerrone.
If he does indeed move up, this could be a tough blow to Frankie Edgar, who has been promised a featherweight title shot (again) by beating Chad Mendes. McGregor was also asked about a match against Edgar in Croke Park in Ireland, where he says would be 'sweet', but he'd be leaving his options open.