Add new widgets to HTML 5.0 Palette

Now HTML5 has only 5 elements: <form>, <label>, <audio>, <image>, <video>.

However, there are a lot of new elements in HTML 5.0 (http://www.w3schools.com/html/html5_new_elements.asp) <canvas>, <embed>, <datalist>, <keygen>, <output>, <header>, <nav>, <section>, <main>, <article>, <aside>, <footer>, <details>, <summary>, <figure>, <mark>, <time>, <bdi>, <wbr>, <dialog>, <meter>, <progress>.

Besides, some old elements, like <table> also can be added to the palette.

bsutter@redhat.com, manderse@redhat.com, could you please advise, which elements may be nice to add to the HTML 5.0 palette.