Here's my simple plan to buff up DAK in the ensuring years. I think it is actually theoretically realistic, even though it is far more than I expect to happen. TDO, if you reading, you have my permission to take these ideas....
1. Build Pandora as planned. Target date: 2017
2. Add night time show and night safari. Target date: summer 2015.
3. Get a new day time parade to replace the apparently soon to be ending MJJ parade. Target date: ideally, Summer 2013 to correspond to the opening of the new FOLK, but simply ASAP
4. Add a double deck carousel on Discovery Island (like the one in TDS) with the ground level being land animals and the upper level being flying animals. This is a variation on a once proposed triple level carousel for DAK. Target date: summer 2015
5. Add a small land on the west side of the park (across the current backstage bridge and between the new FOTLK theater and Pandora) called "Critter Country". Themed to North American/European temperate forests. Target date: summer 2015. Attractions include:
(a) Relocating the old Pocohontas theater and revising that show
(b) A new Mr. Toad's Wild Ride.
(c) a dark ride themed to the story of Bambi
(d) a M&G for animal characters (I'm picturing Chip and Dale being the hosts, but whatever, lot's of options)
I would build this Critter Country with some space reserved for future expansion, but I want to see it open with some smaller/cheaper/quick to build stuff for capacity. I would think you could also include some sort of food service there (a quick serve).
So, #4 and #5 are the key things that I'm suggesting. You'll notice that I have them timed to open in the same timeframe as the night stuff. This helps to justify the longer hours and spread out the crowds. These rides I'm suggesting are simple and affordable and can be built quickly, but they help to enhance the theme of DAK. The carousel should be easy enough, use the same template as the one from Tokyo, but use different animals. The theater from Pocahontas still exists (I believe) so it's just a matter of reusing what you can and moving it. Would not be complicated.
I've suggested simple Fantasyland style dark rides to round this off because they are easy to build and they would add family friendly fare to the park. Bambi is a franchise that deserves to be represented in WDW somewhere and DAK is the obvious fit. But the key is Mr. Toad -- I know people say built a version with LPS and all, which would be great, but I think simply revisiting the old WDW version of the ride with or without some modifications would work well and be easy. Rebuilding the fan favorite would give TDO something to sell to the public, harking to nostalgia, without it having to be a big E-ticket. Having Bambi and Mr Toad in a connecting building would be a pretty small footprint and save on construction costs by unifying the utilities.
Now, the key is to open these things simultaneous with the night time show. The show will be the big deal, the "E-ticket" of the expansion; the other attractions will simply be the supporting additions. This way, when they expand hours into the evening, there are at least a greater number of attractions that will justify it and bring in people to stay for longer hours (and buy merch and food). This helps to "tie people over" until 2017 when Pandora opens and really fills out the park.
