Possible Future Topics

• Keyboard control and focus management techniques
• Accessible JavaScript
• ARIA for web applications
• Accessible Mobile App development
• Date picker
• Tab panel
• Tree control
• Modal dialog
• Address/contact information
• Autocomplete/tagging in text fields (like Twitter/Facebook)
• Icon fonts
• SVG, including icons
• Infographics
• Shopping cart
• Writing
• Visual Design
• "hamburger menu"
• Keyboard access
• Focus management
• Form errors handling
• Complex visualizations for live generation of graphs/charts
• Carousels (you have the main shifting controls, but there are other carousel topics)
• Complex grids with multi-layers of headers

See also http://www.w3.org/WAI/EO/changelogs/cl-app-notes#topics