Maybe the reasons why I didn't particularly enjoy the "Around the Corner" era was because of the hundreds of new characters they introduced, like Stinky the Stinkweed and Sherry Netherland... they also tried to make Betty Lou a major character, and not just appearing in songs and in the books... and maybe how they tried to make the show "cool" and "hip" during that era and began focusing more on Elmo, and probably another reason why I didn't really like it that much was how all the episodes from that era used the Calypso version of the opening theme and that hip, new closing credits sequence. They seriously need to retire those credits now, because they're starting to become out of date, even with them hacking the closing to "update" it.
But I guess I wouldn't mind seeing the Around the Corner area return, IF...
They continue using the "traditional" arrangement of the opening theme they've been using since 2002, and don't switch to anything weird or unusual, like the Calypso theme was.
They don't try to drastically "update" the show to make it "cool" and "hip" and they don't have a "new character explosion" like they did before.
The classic human cast interacts with the Around the Corner environment.
They don't devote entire episodes to the Around the Corner areas and locations.
Otis the Elephant Elevator Operator is performed by one of the recurring veteran Muppeteers like David Rudman, but not given the super-whiny voice that Joey Mazzarino gave the elephant. Believe me, it's a very realistic and great-looking puppet, but the annoying voice takes away the illusion.