My prediction is if the hotels build the rest will follow pretty quickly there after. Walgreens already set their claim in Flamingo but no incentive to actually build until the hotels are nearing completion. Our Walgreens closest to us went up in under 5 months, they are pretty standard, uniform buildings that they have down to a construction science already. The food chain restaurants would likely be similar, easy builds.
What I do like about these particular hotels is the affordable suite style rooms practically on top of the bubble. While AoA does fit that description, that resort is only a Value in Disney's eyes, that place is expensive given the value construction and theming. These hotels would offer families of 5+ a better option and especially a price point that is more palatable, much like Cabana at Uni.
Me, I doubt Disney offers any perks as it will be considered an offsite venture. Flamingo was concocted before the recession. Disney has been struggling with their own occupancy problems since then and still is. I can't imagine what would encourage Disney to offer a white glove to Marriott and pull potential onsight guests to Flamingo.