We have new ATK roles for ARIA roles (and one for rating). See bug 712586. We now need the equivalent in AT-SPI2:

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ATSPI_ROLE_DEFINITION

A definition of a term or concept.

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ATSPI_ROLE_ARTICLE

A section of a page that consists of a composition that forms an independent
part of a document, page, or site. Examples: A blog entry, a news story, a
forum post.

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ATSPI_ROLE_LANDMARK

A region of a web page intended as a navigational landmark. This is designed to
allow Assistive Technologies to provide quick navigation among key regions
within a document.

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ATSPI_ROLE_LOG

A text widget or container holding log content, such as chat history and error
logs. In this role there is a relationship between the arrival of new items in
the log and the reading order. The log contains a meaningful sequence and new
information is added only to the end of the log, not at arbitrary points.

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ATSPI_ROLE_MARQUEE

A container where non-essential information changes frequently. Common usages
of marquee include stock tickers and ad banners. The primary difference between
a marquee and a log is that logs usually have a meaningful order or sequence of
important content changes.

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ATSPI_ROLE_MATH

A text widget or container that holds a mathematical expression.

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ATSPI_ROLE_RATING

A widget whose purpose is to display a rating, such as the number of stars
associated with a song in a media player. Objects of this role should also
implement ATSPIValue.

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ATSPI_ROLE_TIMER

An object containing a numerical counter which indicates an amount of elapsed
time from a start point, or the time remaining until an end point.