witcher3 2015-05-31 00-35-03-05 by Jim UK, on Flickr
witcher3 2015-05-31 00-57-27-62Flickr by Jim UK, on Flickr
witcher3 2015-05-27 01-52-10-91 by Jim UK, on Flickr
witcher3 2015-05-27 02-19-17-91 by Jim UK, on Flickr
Both Skyrims Creation Kit and FO3s GECK were delayed by a few months while they were made ready, the New Vegas GECK was quicker because it's only an updated version of FO3's. It's unlikely CDPR can just zip the tools up and throw them out the door, they may contain licenced technology that can't...
Let's be honest here, the majority of those who don't want to play a female character aren't men, they're adolescent boys, a minority demographic that the industry still panders too for reasons that are beyond me.
I think Obsidian did it right with New Vegas, they force a save before the final quest and after the credits that save is loaded, I think that's preferable to being dumped into a world were everyone you know has mysteriously vanished.
I don't know why people keep bringing up Skyrim, this is more open than that game is, in Skyrim every city is a zone separate from the outside world as is nearly every interior.
It is possible to export them to a USB stick, I don't know if they'll work the PC version though, try it and see what happens, the worst that can happen is the game will crash.