Many of the previous points could be sorted out with a live action playable demo at somewhere like E3 or another major press event. Obviously past Bethesda titles haven't had playable demos mass-released as it's very hard to segment off a section of an entire world to showcase to an audience without resorting to giant 'You're leaving the mission area'-style notifications every few minutes. But all that's needed to keep fans engaged and press outlets satisfied, is an on-stage section played through by a representative. If Bethesda are confident enough to let said section be something any fan can interact with on the actual show floor it'll be unprecedented, but it remains that if they don't elect to drip-feed their PR campaign, instead jumping straight to showing off in-game code would wow anyone with a working set of eyeballs. Just imagine it - a polished 60fps VATS headshot - it's all it would take.
