As of December 7,2020 the State of California has new restrictions on dining that has an effect on Downtown Disney. Both indoor and outdoor dining are not allowed for at least three weeks. Only take out and delivery is allowed. Therefore any table service restaurant in Downtown Disney and the Buena Vista Street expansion has temporarily ceased operations. There are a couple of exceptions that have switched to orders to go only. Disney has implemented new rules that do not allow for any eating or drinking on the premises at all, which means that any food or drink order and pick up will be to take out of Downtown Disney. (And no alcohol sales.) I havent heard if eating inside the car in the parking lot is allowed.
Additional temporary rules: Security will not allow the following to be brought into Downtown Disney; bottled water, gum, breath mints, outside food. Basically anything that goes into the mouth. This information, though, is second hand and not directly from Disney.
The Downtown Disney and Buena Vista Street retail stores remain open with reduced capacity in accordance with the new state restrictions. As has been the case, queuing up to enter each store is required. A reservation outside the store may be required if the stand by queue wait is expected to be long. Just my opinion, but it is possible that guests will not stay on the premises long once hunger hits. It has already been the case that some people get to DTD, purchase what they want, and leave. So that will be the likely scenario.
No word yet on whether the recently implemented parking fee of $10 will be temporarily suspended.