It looks like TLC will be back to make one more album and they want their fans to help via a Kickstarter campaign. TLC's T-Boz and Chilli are raising $150,000 to record their fifth album. There is an interview with Rozonda "Chilli" Thomas about the details of the Kickstarter campaign and the album over at Billboard.
On TLC's Kickstarter page, there are the typical premium such as the album and behind the scene updates. However, there are some unique premiums such as a slumber party with TLC, watching a movie with TLC, and an opportunity to workout with Chilli. You can view all the premiums on TLC's Kickstarter page.