The Tail Section

LOST Episode 2.16: The Whole Truth

Recurring characters Bernard, Rose, and Henry Gale will appear. Two guest starring characters will be Jae Lee played by Tony Lee and Dr. Je-Guy Kim played by Greg Joung Paik. This episode is a Sun/Jin episode.

Source: insiderscoop at the LOST ABC Forums

Episode 2.17: Lockdown

Will feature a kindly latino priest named Father Chuck. Don’t know which characters-centric this will be, yet.

Source: SecretAgentMan at TWoP

This is most certainly a Hurley episode, which means we will probably see the connection between Libby and Hurley from the past.