This one at least has some screenshots of the new design. It feels like a Facebook clone to me. In particular it looks like they're flattening comments to be like FB rather than the thread? model that Reddit has today.
The only significant change I've noticed re: comments are how the nested chains collapse: instead of the intuitive [+] and [-] at the parent comment, there's a line that runs alongside the chain. Click that line and it collapses.
It's not as easy to figure out on your own, but it's a significant improvement IMO.
This one at least has some screenshots of the new design. It feels like a Facebook clone to me. In particular it looks like they're flattening comments to be like FB rather than the thread? model that Reddit has today.