As excitement builds for their reunion, fans of the group have begun to question how TLC will incorporate their late member, according to Mashable.
Left-Eye died in a car accident in Honduras. The ten-year anniversary of her death was April 25.
Fellow members Tionne "T-Boz" Watkins and Rozanda "Chilli" Thomas have been preparing for their comeback the past few years, in sporadic appearances on "American Idol," benefit concerts with other music stars and a brief series of concerts in Japan.
The two have not given many details about the reunion and it is unclear whether Left Eye will appear, and if so, how. The possibilities include video clips or, like Tupac Shakur at Coachella, as a hologram.
"We're trying to work that out to see if we can really deal with [a hologram of Left Eye] because you have to stand next to that person and you know she's not here, and that's really emotional," Watkins said.
The group became popular in the 1990s for hits including "Waterfalls," "Unpretty" and "No Scrubs."
Music channel VH1 is set to produce a biopic on the group for the band's 20th anniversary, and a new album is in the works.
"We're going to still sound like TLC, evolving to whatever level we need to be at this time," T-Boz told the BBC.
For now, the group is focusing on the reunion, and how to honor Left Eye. Chilli said the group is still considering the hologram.
"I think we would probably pass out and all of our fans would break down, but it's amazing how real the hologram looks, it's almost like you can touch the person," Chilli said. "It's great but spooky at the same time. But we're definitely thinking about it."