For me, the things to return to this park for: ToT, RnRC, Muppets, the Villains shop (which now that it's gone mostly Nightmare Before Christmas may drop off that list, since I don't really like that movie), Little Mermaid and 50's Prime-Time (in the evening, yes, at least once per trip I must also go see Fantasmic).
I've seen the Indy show and liked it, but wouldn't have to ever watch it again. I wasn't particularly impressed with Sounds Dangerous. A stunt man was injured the day we went to see Lights, Motor back in May, so I don't think I'd EVER want to see that again...too traumatizing to see. I love classic movies, but I'd prefer the GMR without the gangster/cowboy thing. Star Tours has a great queue area and it's one of the few gift shops I don't mind being dumped in upon exiting...I just wish the ride were longer and less hurky-jurky. The other attractions appeal only to smaller children (and then only a percentage since many don't watch Disney Channel. Even my one friend who is a parent of a (now) four year old tended to be tuned more to Nick! for Dora than the DC shows).
My favorite part(s) of the trip to that park used to be:
1. the backstage tour -- which now still contains the annoying part at the beginning where they splash all that water all over the poor schmoe they pick to be a volunteer but doesn't have any movie props/sets to see. THEY TORE DOWN THE GOLDEN GIRLS HOUSE! Where are the props/vehicles that were in the "Graveyard"?
2. the animation tour -- which has been hobbled since Eisner closed the Fl. animation studios here. In the past, I got to watch over the shoulders of animators down in the offices and saw parts of Tarzan and Lilo and Stitch before they were released. While I can see the appeal for families with children for the tour as it exists now (where you can learn to draw a Disney character), I'd love to get that "insider" feel again. Iger and Lassiter NEED to re-open those offices again. Bring Back 2-D Animation!
3. one of the smaller sections was always "Behind the Scenes" of ____. They had a number of smaller syndicated television shows filming on the soundstages in MGM. I remember one being "Mortal Kombat: The Series" and another being "Sheena". While I wasn't particularly fans of either of those shows, it was fascinating to walk through and see the WORKING sets that they were shot on. Why aren't there still smaller shows being done here? I'm sure that fans of Disney Channel would love to see "That's So Raven" or similar shows behind the scenes. Perhaps a future show could be located on these soundstages!
If they were to revitalize these three attractions (and unfortunately, there is no real hope for the backstage tour since most of the graveyard and backlot area was gutted for the stadium that Lights Motor is shown at), I'd spend at least a FULL DAY (if not more) at MGM.