TerraDave
5ever, or until 2024
The 2E version could be cheesy (lets not just have elminster, lets have all the top mages together!), but the potential is there. To say have characters move from your home brew, to dark sun, to eberon, to the old west...which you could do anyways, but now more officially. Or to have Mordekainan as a past visitor in your world. And so on, and so forth.
And an official meta setting is much cooler then say just FR (or any one of them) as the "default setting".
And an official meta setting is much cooler then say just FR (or any one of them) as the "default setting".