Kult (under developement): Will feature many dialogues which affect the game.
KotOR 2: Even more dialogue choices than in the original game (at least that is promised) with plenty of opportunities to persuade or lie.
Wizardry 9: No one knows when the game will come out. Still no news from Sirtech since they promised to reform and continue with Jagged Alliance and Wizardry licenses.
Elder Scrolls 4: The next ES game should feature as much dialogue as in Morrowind.
Fallout 3: There is no reliable information about this upcoming game by Bethesda but knowing that Morrowind had a long dialogue tree, we can expect the same for ES4.
Vampire: Bloodlines: Troika wrote a big dialogue, with possibilities to avoid violence, persuade or just talk with different NPCs.