Moving the film to streaming only would be a completely unprecedented decision and may be the dagger for theater chains if WW84 is successful on streaminhg, but I don’t think they are gonna do it because there is too much money on the line especially when they can release WW84 in December and move Dune to another release date.
depending on how long this coronavirus lasts, it may eventually be wise just to release it on streaming, especially if it goes on past July or August