One of the most exciting conversations for WordPress 3.8, in my opinion, is around creating content blocks and art direction for editing with WordPress. This is probably the direction core is going to go for handling post formats, and any other type of content within a post / content type’s content area. There’s a great conversation going on right now, led by Mel Choyce, about some initial ideas and concerns with this concept. If you publish with WordPress frequently, and you have ideas for how the editing experience should be, I highly recommend you get involved on this project.