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New technologies on the horizon and the rapid evolution of the underlying technologies for user interaction on the Web are likely to continue to drive the need for new guidance.
To address these needs, the WCAG Working Group has begun to develop a framework for WCAG 2.0 extensions. These would be separate guideline documents, to increase the amount of coverage on particular accessibility needs. Authors and policy-makers would be able to choose to meet the guidelines with one or more extensions, which inherently meet the base WCAG 2.0 guidelines, while organizations that have policies built around WCAG 2.0 alone would not be impacted by the extensions.