Y2J - In an ideal world, he would win the Rumble & go on to face Ziggler for the WHC at Mania, then win and have a final 6-month reign
Mark Henry - His last run was ruined a bit by his injuries, if he could come back 100%, I'd like to see him complete that push before retiring with glory
Batista/Vader - Just for the pop
But if there weren't so many fucking jobbers in the Rumble (3MB? Really? REALLY??), then there could be room for all the guys you mentioned.