I have been keeping up to date with the developements of HTML.
As you know we are currently at HTML 4. The Next version of HTML will not be HTML 5.
The new language has been deemed XHTML 1. And there are a few new rules to the language. These are two basic new rules
<br> Tags have to be changed to <br />
<p> Tags must now have an end tag.
CSS 2 Is in dev