After NBC’s executive session at TCA this morning, NBC chairman Bob Greenblatt addressed the future of 30 Rock star Alec Baldwin, who had hinted in interviews that he may leave the NBC comedy when his original contract was up at the end of this season. Greenblatt said that the network “quietly re-upped” the Emmy-winning actor with political ambitions for next season. However, the series itself has not been renewed for Season 7. A decision on the future of 30 Rock, whose sixth season launches next week, will be made closer to the upfronts after the network sees how the show performs this season and screens its pilots, Greenblatt said.