The one thing you have to take into consideration is that MK will close early in the day due to reaching capacity. DHS is also likely to close, and even Epcot. If you want to be in the parks at midnight, you will have to pick your park and be there by 11 AM (approximately), and stay there into the evening/night.
All park TS will be booked solid, so don't plan on walk-ups. All CS will be crowded, but if you eat a bit off-hours, it's not impossible to survive the lines and find tables.
We never focus on ADRs, but this is one of the few cases where even I would plan to book right at the 180-day mark.
Have a great time!