I think that depends on a lot of things- Mostly the amount of moisture on or around the building envelope as the thaw begins. Does the house have a thermal/ vapor barrier? , the internal/external temperature differences etc. I’d be concerned about ice dams on roofs if there are a lot of warm days and below freezing nights or another warm spell followed by below 32 high temps in a mostly un -heated house. Paint? I hope not much that’s a stain environment.As someone who works on houses, Im very curious what the siding, paint, roofs, etc will look like when these houses reappear.