You are the only one who can make that decision, but as someone who lives here, I don’t begrudge anyone their ability to go on vacation. My past experiences at WDW post hurricane were fairly normal, only the occasional downed tree showing that something had occurred. They clean up as quickly as they can and try to return to normal. We should know by tomorrow evening how bad the situation is overall (damage, power outages, etc.) and if I were you, I would use that as my criteria for whether to cancel or not, not guilt at having fun when others aren’t.