Restaurants are going to die. Maybe not the whole industry but shrinking is going to happen, it is just a question of 5 to 75% or whatever number range.
The restaurants that do survive will have to adapt, far more takeout, less sit down, less staff.
Hopefully the federal government can do a rent subsidy or the businesses tell their land owners fuck off, you get partial rent for if I go bankrupt you get no rent and no one is going to want to set up a new business during this down turn. Land owner you need me so work with me or fuck off.