Not likely to rise from the ashes again
The temperatures will drop so precipitously that the electronics will become brittle and break. Also the solar panels are not expand to hold up once encased in CO2 ice.
I'd love to see Phoenix rise again with the next martian spring about a year from now, but that is not very likely to happen.
Phoenix has been a marvelously successful mission. The data is has generated will feed science journals for decades to come.