rounser said:
And that's easy to answer, because you just look to mythology. Elves? Dwarves? Check. Hobbits? Erm, not really. Blame Tolkien. Cambions? Check, but not by the empire. Strong presence in every world? Hell no. Dragondudes? Nup. Getting pretty specific there. "Eladrin"? What the heck is that? Sounds like something plucked from a specific world.
It's shades of grey. But that doesn't mean "anything goes", IMO. The core does a lot of worldbuilding for you, and so needs to be treated carefully. WOTC are getting pretty cavalier with it at the moment, which may see harm to D&D's IP in the long term as it becomes "D&Dism world construction kit" rather than "fantasy world construction kit" even more than it already is.
But, from what we've seen, the "fantasty world construction kit" is NOT what 4e is going to be about. They're giving you a complete town and starter adventure in the DMG. They're giving you a fair bit of racial backstory and pantheon work in the PHB. Core D&D is apparently meant to be played out of the box.
Unlike previous editions where DM's were expected to spend dozens, if not hundreds of hours detailing a campaign world before you could start to play. The only problem was, so very few DM's actually did this. Most simply started playing and ignored the whole world building schtick as much as possible.
The problem with that was, there was so little actual campaign material in core that campaigns were pretty flat and boring. The adventures might be fun, but, the setting was tissue paper thin.
Now, those of us who have zero interest in spending a bazillion hours writing fanfic get to play in a set world with enough backstory to make it hang together. Fantastic. Even better, it's not yet another Tolkien rip-off wannabe Middle Earth.
For you homebrewers out there, it's a bit more work. Too bad. I have no sympathy anymore. I used to, until I realized that homebrewers would much rather make it much harder for everyone else to play the game so they could do less work stripping out flavor text.
This is finally the edition that plays out of the box. We haven't had that since Basic/Expert D&D in the 80's, and I, for one, welcome it.