Its been my understanding they will transfer luggage between resorts. Its just the DME luggage handling that has been ceased. I could be wrong, but this sticks in my head from prior reading.
That said, there have been a lot of reports on here over the years of bad experiences when allowing Disney to transfer luggage between resorts. Even if all goes well, it can still take hours. And in these times when they are short staffed with new procedures, there's no telling how it will go. Many here would recommend using Uber/Lyft anyway, just so you can retain control of your luggage and always have access to it. You can store your luggage with bell services if your new room isn't ready yet.