Some of my suggestions involve cutting jobs (but as you mentioned, the money saved could be used for physical expansion in the parks (new rides/lands) where new jobs could be created).
First, I would cut live guides at Great Movie Ride, Jungle Cruise, Kilimanjaro Safari.
This might sound like blasphemy but hear me out. A great live guide in an attraction can often enhance the experience, BUT a great live CM guide is a very rare thing (maybe 1 out of 40 are actually great. Most are "decent" to "middling" to "weak" and detract from the attraction, at least in my experience).
GMR: Use the voice that says "You are aboard the Spaceship Nostromo" to narrate the entire ride and rework the scenes that involved the switcheroo (giving the attraction a much-needed freshening up).
Jungle Cruise: The guide's bad humor has become the ride's staple, yet it becomes tired after a while and breaks "the third wall" by mocking the theme park experience (Universal-style). I would convert Jungle Cruise to a humorous, River Queen-like adventure with a pre-recorded, non-self-aware, spiel along the lines of Pirates & HM, freshening up a decades old ride.
Kili Safaris: I find that the best part of the ride is when you are traveling through elephant country just listening to the African music on the radio and not the guide talk about Big Red & Little Red. A voice-over airborne ranger (perhaps more understandable than Wilson) could make comments about the various animal along the way, but most of the time, the guest experiences the savanna without listening to a moment-by-moment tour guide. The vehicle would still require a driver, so perhaps he/she could ID a few animals along the way (but much, much less narration). So I suppose it wouldn't eliminate the cost, after all.
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A smart, automated monorail expansion (see Dubai Metro) would involve huge upfront costs, but could be a long-term money-saver in terms of fuel prices, man-power required, vehicles (buses), traffic and guest experience.
I agree with you to some extent except for the Jungle Cruise. It is just too much a part of the tradition.
So to finish up my idea because it has grown far beyong the scope of this thread, basically it is to add parking garages to replace the tram system or at least minimize the need for trams. I think they would initially need to build smaller garages that were only for premium AP holders and on-site guests (plus other uses I will detail in another thread). This could be done in such a way that the garages could be expanded as the traditional parking lots become less necessary over time due to the new garages. As I Armchair Imagineered this it turned from a simple idea to phase out or minimize the trams into a resort wide transportation system utilizing monorails, trams, busses, the new HSR and PRT technology. It is awesome (I say modestly) and I'm convinced it is practical. But that is its own thread in the near future. I'll continue to add to this thread and also add my two cents to what others contribute. Great ideas so far. Thanks for everyone's input.