That depends on what you mean by "planning". I'm technically planning a trip for Summer 2019, but as flights aren't open for that time yet, and the deal I want hasn't been announced, I can't really do much beyond planning what time we WANT to shoot for and what things we don't want to miss. The intense planning won't happen until we can actually book, which I expect within the next few months. But I do plan out what days I want to go to which park according to projected crowds, and which fastpasses we want for which days and which ADRs. This trip is a bit trickier as my cousin's family is wanting to coordinate their trip with ours, and we're hoping to get my brother to bring his family as well, and do a sort of family reunion at Disney, which will limit what we can do when. But, I am a planner, so I get really anxious if I don't have some specifics nailed down and know where I'm going to be when.