Majority of the northern allied leaders were boinked at the Red Wedding. There would have been chaos and confusion of leadership for those who were next in line to who was left to take over for each house. If Robb made it back, the younger house leaders would be advised differently by their council to stay allied with starks or reconsider their status as a vassal. New house leaders would be hell bent on revenge but only the older leaders next in line would do so, but younger ones would be advised to stand down or disconnect. Robb would need to unite the north. There wasn't a lot of experienced soldiers left and new recruits would prove to be costly and commanding new recruits with no battle experience would prove difficult to win against their opponents. Robb would have lost.

Rob shouldnt hold the twins. He has no change fighting in the riverlands. He needs to het his grandpa and all those that wanne follow and ride noeth to mote cailin. The royal fleet is dust he need onlu fear the ironborn

Well done. Logical break pount.

First

What if Robb really had to take a piss instead of Blackfish.

If he wasn't killed at the red wedding he'd still have died.

Yeah if he survived. He would have made it back home