I know I'm a couple months late to this party, but there was big news from Her Interactive. Namely, the next game is getting delayed until next year. In part, this is because they are switching from their current game engine to Unity. Then-CEO Stuart Moulder talked about switching to Unity in March 2014, so this isn't a complete surprise.
Her Interactive did a video, showing off what the new system will look like, compared to the old one.
What do you readers think? I think the new system is smoother and allows for more exploration. I can also understand some complaints that Nancy's walking animation is too bouncy, and it causes motion sickness. It should be pretty easy to eliminate Nancy's bouncy walking...I think. The only frame of reference I have for full first-person 3D is the Metroid Prime trilogy.