I'm pretty sure that I remember when, in Epcot at least, you no longer had to run to the kiosks under Spaceship Earth to make your dining reservations-if you were staying in a Disney hotel, you got the privilege of reserving up to THREE whole days in advance! We went to WDW in 1989 and 1992, I'm not sure in which year this happened.
I hope they do stay at 60 days-I just don't want to plan that specifically 6 months out.