If you notice in one spot their are two kids Taker has a brother...KANE so it's taker. Also there are Pools of water like what happens when houses catch fires and Firefighters put them out...
In one spot there is an over turned shopping cart which Raven was famous for having so it's Raven.
They show a lake so that obviously means Aquaman.
Truth is there is no Audio saying Tombstone blown up with professional equipment no audio. You can have the opinion that is what it says but opinions arent facts so don't present them this way.
Could it be taker it could but it doesn't say Tombstone. Not to mention that this isn't his SECOND COMING it's not even his third or fourth. One could argue that it's Jericho's second coming after initially leaving the WWE so that's a bit weak also. I think Dale was joking but it can't be Sting because it would be his first time in WWE unless you count the one day that sting was in WCW while WWE owned it.
These taken into account Batista is the most likely of suggested names but I'm still holding out for Y2J with them having someone else in play as a back up in case a deal falls through.