Episode 8x10: Legion
January episode
# 10/27 - Three Legionnaires from the future will appear - and if you're guessing it's the same roster that appeared in their first appearance way back when, you guessed correctly... the three Legionnaires will be Garth, Imra, and Rokk, who have powers of electricity, telepathy, and magnetism, respectively. Source: KryptonSite
# 10/06 - The threat of Brainiac - who has taken over Chloe's body - brings three super-heroes from the future back to the past. Eventually they work together to try and separate Chloe from her Brainiac side. Erica Durance, Aaron Ashmore, Cassidy Freeman, and Justin Hartley do not appear in this episode. This episode features a Legion villain that [Geoff] Johns himself is surprised he was able to use. No word on who yet, but our money's on Darkseid, Mordru, or the Time Trapper. Source: KryptonSite
UPDATED 10/14/08: Three Legionnaires from the future will appear - and if you're guessing it's the same roster that appeared in their first appearance way back when, you guessed correctly... the three Legionnaires will be Garth, Imra, and Rokk, who have powers of electricity, telepathy, and magnetism, respectively.