The staggering level of ambition of The Witcher 3 does scare me a bit, simply because of what I've seen happen to another great series that got really ambitious with its third iteration: Gothic. Luckily, CD Projekt RED are in a position where they pretty much answer to no one but themselves, and with their subsidiary, GOG, constantly blowing more wind in their sails, they may actually have the time and resources to at least attempt to fully realize their ambitions.
As for Dragon Age 3, I hope it's good, I really do, there's just so little to go on at this point.