Excuse my ignorance, but is4e still going to use the d20 system? If not, what will happen to it?
Seriously, I really doubt that? ;)
If it would, there wouldn't be a new edition.
Think of 3rd Edition as d20 System v1.0, 3.5 as v1.5, and 4th as v2.0.
The Greendale Campaign
I was there at the dawn of the Third-and-a-Halfth Age of Dungeons & Dragons. I saw action during the Crisis of Infinite Foundations, stood on the ramparts of the Citadel of Mirth, delved deep into the debauchery of the Forum of the Adult, and fought alongside the Infernal Bovine on the fields of the Eberron War. I weathered the Ponystorm. I witnessed as the orcs came for the wizos, and I wept mightily. I saw the realm crack as the Fourth Age came upon us, and I witnessed the eldritch tendrils of the dread Gleemax. Now I watch as the Meta Wars ravage the land as the Fifth Age is dawning. I have walked these Boarderlands for many a long year, and bear many scars in my soul. Yet I remain the White Sorcerer, ever in your service. TWS out.