Isn't next year the 20th anniversary of T2? It would be the perfect time to re-release it. I'd put the ending coda on there as well. Would finalize T2 as THE END, and no more movies could be made. I can't believe T2 is gonna be 20!
Adding that scene in like that, would be doing what everyone blasts George Lucas for at this point, and even if they did? Only in the minds of a few purist would it be "THE END" to anyone else that thinks they can still make a buck? They'll make another.