The top picture reminded me of a less-colourful Bulletstorm, whilst the bottom looked like something out of Fallout 3.
I wonder what engine they'll use for this? Hopefully not the same one they used for Fallout 3/Oblivion. They'd better make a separate one for this or it'll be awkward and we'll have annoying things like guards noticing you sneaking up behind them from 10 metres away because your sneak skill is only 10. i.e. No contrived RPG elements = i'm happy.
Also first person platforming and sneaking is terribly hard - hence why games like MGS and Splinter Cell use third-person perspectives. Mirror's edge wasn't half bad at it, but that's one game out of many that did worse.