Conor McGregor  may not get an immediate title shot, after all. Multiple sources with knowledge of the negotiations told MMAjunkie that McGregor (16-2 MMA, 4-0 UFC), the popular Irish featherweight, is targeted to meet  Dennis Siver (22-9 MMA, 11-6 UFC) at a yet-to-be announced fight card on Jan. 18, which could take place at Boston’s TD Garden. The sources spoke on condition of anonymity because they were not authorized to speak publicly on the fight card or pending booking. Although bout agreements are not yet in place, the promotion plans to keep McGregor active rather than reserve him for a fight with the winner of an upcoming title bout between champ Jose Aldo and Chad Mendes, which is set for Saturday’s UFC 179. The Jan.