I am going to buy this, and if it is what I hope it is I'll shit a brick, the last part gave me hope that it will be as fast of a game as I remember Doom originally being, time will tell.
And if WFA could be done on this I would play for sure, but then, I seem to recall that the Q3A physics were just fucked up enough to allow that kind of movement and acceleration WFA needed, I would love (but doubt) Doom 4 will have bunny hopping action.