Resurgent (adjective)

1. Rising again after a period of decline or inactivity.
2. Making a comeback after being defeated or losing popularity.

Origin:

From the latin word resurgentem meaning "rising again".

Examples:

1. The economy is showing signs of resurgence after the recession.
2. The team has been resurgent in the second half of the season.
3. After years of decline, the resurgent company has regained its position as an industry leader.
4. The resurgent popularity of vinyl records has led to an increase in record sales.
5. The resurgent popularity of the band has led to a comeback tour.