If you will be on the move-Plan to shelter in place-whether it is an airport or a hotel. Hurricanes are very fickle and can make course changes at any time. While we can give a very good, science based estimate of where they will go, it is still just that--a very good but still best guess. If you are driving, keep in mind that FL might turn some southbound lanes on major interstates to Northbound lanes in the event of a mass evacuation. If you are driving, consider stopping somewhere along your route for the night. It puts you closer to Disney in the morning. But keep in mind-evacuees are booking hotels close to Florida in both GA and SC. Here in GA even Atlanta hotels are filling. Keep an ear out/google weather reports along your route. Even areas not in the direct path may experience rain.
My best advice (from experience): 1) if you are on the border about whether to go or not go, call and see if you can add/buy
travel insurance. 2) keep an eye on your airline policy for rebooking 3) switch to a deluxe resort/DVC for 1 or 2 nights. Make reservations at their onsite restaurants. While they might not offer a full menu it beats small sandwich, boxed meal they had last time. It also means you do not have to go outside to reach food courts or restaurants. 4) I believe Disney does not allow for any wiggle room UNLESS there is a specific warning for Orlando. 5) If you are still traveling-pack as if you will be sheltering in place. 6) Bring indoor activities for the kids. 7) Do not plan on hitting any grocery store/Wal-Mart when you arrive unless absolutely necessary. The lines will be hours long (if they even have any stock left).
Keep calm--your kids will be taking their cues from you.