Stahl does talk a bit about the Season 8 update which will release "later this year." It will focus on endgame missions for all factions as well as the game's first Space Adventure Zone. Also in the works is a new reputation system that represents a "major shift" from the current mechanic that Cryptic hopes will make it "more approachable than some of the previous systems."
There's also a bit of info about Season 8's Feature Episode, as well as a mention of "a major investment in Gateway" to upgrade STO's web and mobile functionality. You can read the full letter via the links below.