Can virus survive dessication (and come back functional after rewetting)?
Viruses that are protected by a protein shell (non-enveloped) like adenoviruses, rotaviruses, and hepatitis A virus can survive dessication for a while. This paper showed adenovirus remained clinically infectious after 28 days on smooth surfaces, and this paper found around 1% of human rotavirus and hepatitis A virus survived after 60 days.
Other viruses might survive dessication even longer, these are just the ones I looked into.
Regarding rewetting, any test for virus survival will re-wet the virus.