Hope: A comprehensive feature list (details not necessary, just an overview) and a robust list of improvements to existing features.
Expectations: None of that. Pretty pictures, 50% or more concept, marketing language, emphasis on choice and player narrative, intense focus on legs and FPS with little to no mention of base game improvements, and - if we're lucky - footage of, um, walking around but not actually doing anything.
Oh, and heavy dialogue on personal life in the last week. None of which is related to the expansion.