I am hopeful as well. But I think it's worth remembering that Disney World is at the very high end of the scale in terms of the potential to spread the virus. Thousands upon thousands of people, coming together from all over the world, and gathering in close proximity --- packed together in lines and crowds, sitting together at rides and shows, all touching the same surfaces on rides and restaurants, etc. It may well be the case that most businesses reopen around the country by the summer, but theme parks, professional sporting events, arena rock concerts, and the like need to remain off limits until a vaccine is widely distributed. (Or, even if these things reopen, it may not be the wisest choice to attend.) Alternatively, as is being discussed on the Rumors board, Disney might reopen with revised operating procedures that we would all need to take into account in deciding whether or not a trip is worth it at this time.
If I had an August trip planned, I guess I would view it as a 50/50 proposition at this point. (As it happens, I have a June trip planned. I am, sadly, quite pessimistic about that. But I haven't cancelled yet, because there is still hope!)