It’s unlikely that Christian will be back for the Royal Rumble match, in fact recent reports suggest he won’t even be back in time for Wrestlemania. Christian tore his pectoral muscle in September. His first ever muscle tear. Source: TheWrestlingTruth
Thats a bummer... Hope he can recover as soon as posible since having a muscle tore is pretty serious. But to be honest i'm not really a fan of Christian so he will not be missed on this end for the time being lol.
He's one of my favorite wrestlers of all time; he's a true legend. Hope he returns soon, hopefully he won't miss wrestle mania.