On the pre-show today for WWE TLC 2014 on the WWE Network, Renee Young talked about Brock Lesnar in promoting the John Cena vs. Seth Rollins match for the PPV.
If Cena were to lose, he loses his #1 contendership for the WWE Title, but Seth does not necessarily win it.
Either way – Cena or someone new – that person is scheduled to face off against Brock Lesnar as the co-main event for the WWE Royal Rumble 2015.