The current DTD is about only 1/3 of the size it will be when all is said and done. Many ideas and mappings have been worked over for the last few years to work out the specifics and details and they are still changing (which is why Hyperion Warf delayed construction). When all is said and done, expect a new DTD entrance ramp off I4, unique transportation, a blow-up of the current WoD, possible nightime entertainment, structured parking and several retail offerings from around the world.
Good lord, I love it when you chime in with these little tidbits. Almost like the ultimate hit and run.
If what you have described ever happens, it would be well worth the wait. It'd be really nice to see TDO finally do something that one-ups Uni. These plans sound like just what the doctor ordered.