Star Wars Insider Issue #132 features Darth Maul and Savage Opress on the cover and has a number of great features including a description of the last four episodes of this season.
The final two episodes are Brothers (4.21) and Revenge (4.22), and Revenge in particular sounds insanely awesome.
Brothers: Written by Katie Lucas and Directed by Bosco Ng
"Savage crosses the galaxy in search of his brother, Darth Maul. Can he rally the broken Sith Lord, who has sunken to the depths of madness?"
Revenge: Written by Katie Lucas and Directed by Brian Kalin O'Connell
"Darth Maul and Savage Opress make a formidable team out for revenge against Obi-Wan Kenobi and Asajj Ventress. Can the Jedi and the fallen assassin work together to stop the horned warriors?"Revenge sounds like the classic pro-wrestling tag team match. I love it.
SOURCE: Star Wars Insider