Yes, Portal Games has announced four forthcoming titles for 2017, in addition to the previously announced (and still under development) First Martians: Adventures on the Red Planet. Stronghold: Undead is a revised version of the previously released Stronghold: Undead expansion from 2010, with rules for "gathering mana, spell casting, and terror", as well as new buildings and abilities for the Defender and a brand new map with new routes for the Attacker. 51st State: Scavengers, an first expansion for 51st State: Master Set based on the previous 51st State expansion Ruins adds new locations to the game and lets you search the discard pile for tools to use in your State. Cry Havoc: Aftermath includes five new skills and three new structures for each faction and introduces an alternate game mode that ensures each game lasts for five full rounds; what's more, when passing an event token, instead of removing it, new scoring abilities are introduced that allow players even more options to gain victory points.
Aside from those expansions, at Gen Con 2017 Portal Games plans to launch Alien Artifacts by Viola Kijowska and Marcin Ropka. Here's a short description:
Alien Artifacts provides a true 4x experience in under an hour. With over 200 cards, Alien Artifacts offers players many scoring strategies and great re-playability.