There's a pretty good English-language roundup of recent developments in Die Linke by Victor Grossman at the Monthly Review.
Grossman sees reason to be optimistic after 96.9% of party representatives ratified a formal statement of their party program in Erfurt last month. It must also be considered a positive to have Oskar Lafontaine back in action after a period of convalescence following his fight against cancer. Apart from Gregor Gysi, I feel like only Lafontaine has the charisma, rhetorical skill and star-power to return Die Linke to visibility on a national level. (German-speakers: Das Herz schlägt links!)