1. Ability to make DIV and IINPUT fields(with naming) like we do placeholders. The DIV one will drastically reduce page bandwidth consumption without manual placeholder coding.
  2. All pages except for index hold file names and extensions, file name is forced *.htm on website export. Have it acknowledge page naming.
  3. Interactive Flash?(I know this is a stretch). I know .SWF is a compressed archive format with media and meta data, along with scripts inside. I see Xara is already 3/4 the way to this feature. Flash layouts hold their positioning and style under all browsers, this takes a lot of hacks to do in markup.
  4. Export embeddable element, Like if I wanted to do a floating Menu in an existing layout. I'd export a DIV markup stub+media and paste it over.