I know alot of people love Y2J (myself included), but should he really come back to WWE? He has basically done everything there is to do as far as storylines and titles are concerned, but I don't think that there is a hole left in his absences or that the company really needs him.
He's yet to win a Royal Rumble, so that's one thing thats certainly eluded him. He's yet to have a proper send-off as well, and for someone whose spent as much time in the sport as he has, he deserves more then a punt to the head on Raw to end his career.
That being said, you're right on the latter part. Where a Y2J is quite valuable, the hole left by his absence isnt as large as one would think. WWE has lost HBK and Batista to retirement, and HHH and Undertaker for much of the year due to injuries. While their absence has been felt, they havent been unreplaceable as many have felt, because WWE does a wonderful job of building new stars. With the above departures noted, Nexus, Sheamus, Miz, John Morrison, Alberto Del Rio, Daniel Bryan, and Dolph Ziggler, amongst others, have spearheaded the youth movement that have kept WWE relevant.
Don't get me wrong, I'm not saying that he isn't entertaining or that he woudn't add value, but it's just that there are so many up and coming stars that are trying to get their spot on the roster that maybe Jericho should just continue working with his band or maybe even expand his horizons elsewhere on more projects outside of wrestling.Then again, with so many new stars, maybe they should have some more veterans around to help them out.
This is where Jericho is so valuable. He's an able competitor who can easily transition between the main event and the mid-card seemlessly without missing a beat. He's able and willing to put younger competitors over and make them look like stars. Jericho isnt one who is generally involved in 20 minute angles on Raw, and when he is, its generally in putting younger competitors over.
So what do you think, should Jericho come back to wrestling? Is he needed back in wrestling?
These are two totally different questions, with two entirely different answers.
Should Jericho come back? Only if he wants to and would feel fulfilled by doing so. You could make the argument that so many wrestlers have done it all, even those as young as John Cena. The same argument could be applied to Jericho. Aside from winning the Royal Rumble, there's very little in his career he hasn't done. But if he still finds enjoyment from wrestling, and can compete at a high level, there's always a use for a talent as valuable as Chris Jericho.
Is he needed? No. Other then perhaps John Cena, no wrestler within WWE is irreplaceable. As Ive stated above, WWE has done a remarkable job of transitioning up and comers into main eventers and main eventers into virtual legends. The whole with WWE is always greater then the sum of its parts. While Jericho has been an integral part of the business and a versatile competitor, there are those within the company right now that are capable of taking his place. I would loce to see Jericho return as he can make a great contribution to the business in whatever role he plays, but he's not a necessity. He's a talented guy who should continue doing whatever venture leaves him feeling most fulfilled.