You will have time to get your FP+s as PPs have said. Your bigger issue is going to be dining- but you will find that out soon enough. With the 180 day window, almost everything decent and/or desirable will be long gone by the time you check. We did a 'last minute' (in Disney time) trip this year as well- and I have been able to get almost everything to shake out that I wanted. It took some tenacity and frequent checking every day- but most everything dropped into my lap, including BOG. Interestingly enough, BOG popped up several times as being available over the course of the week that I was doing a lot of checking.
Anyways, the other thing you will want to keep in mind is the 45 day package cancellation window. The exchange rate is terrible for some countries right now, and my guess is there are quite a few people 'holding out' in the hopes of a reversal in the exchange rate- which probably will not come to pass any time soon with the recent devaluations in China. This, in addition to all the 'regular' cancellations that come up, will make for more opportunity at the cancellation deadline. Those reservations being held until the deadline are going to cancel at somewhere around 51-46 days out (just a guess)- and a whole lot of desirable ADRs and FP+'s are going to shake loose, so check during that time period if you don't get what you want.
