If you mean on their major plot clearly earmarked for a park of some sort, no. Somewhere else shoved into the resort? Maybe.
Next in line though? Very, very unlikely. Also HK Government owned Ocean Park is opening a water park, and they are very about not allowing any park to cannibalize the other. Ocean Park was 12th worldwide for attendance (the highest non-Disney non-Universal) and was, but probably won't be for long, ahead of HKDL in 2012. They want both parks to thrive and that means quite different offerings. We see how much they are pushing for unique offerings these days out of Disney, they don't want clones.
For that reason as well I wouldn't ever expect an Animal themed gate, it steps too much on Ocean Parks toes.
All very on-target. I wouldn't expect a water park at any Disney resort, even WDW where there have been capacity issues since RC closed and constant issues at TL due to a wave pool that was built shoddily and tends to need constant attention.
But the SAR absolutely wants HKDL and HKOP to both be successful; and they both are growing quite nicely. DL has an advantage with the direct MTR line from the Sunny Bay station, truly the most MAGICal gateway to a Disney Resort. For decades, OP has been sorta 'out there' in Aberdeen, but that's going to change with the opening of an MTR line soon (either later this year or 2015, can't recall right now).