We've been told bus service is being eliminated from resorts with Skyliner service to the parks.Never happen, I'd never stay there to begin with.
Disney is belt and suspenders. I don't believe there will be no other transpo option available for that trip than the gondolas.
There may be fewer buses, due to less demand, but I don't believe for a second they aren't going to exist at all.
Obviously AK, MK, and DS would still have bus service, so I suppose one could spend an hour doing transfers to get to/from the parks to your resort.