From W3C Wiki
The bulk of the proposal is (currently) in a PDF; see attached file. The proposal comes from the Google teams working with the existing Event markup, and has been checked by the other schema.org partners prior to publication. See PDF for full details of the proposal.
Event schema.org proposal
- Proposes 3 new properties of Event: eventStatus, previousStartDate, previousEndDate to support canceled or rescheduled events.
- Adds eventCategory to support categorised events.
- Supports recurring events by making startDate and endDate repeated.
- Encourages use of existing 'url' property (of Thing) to link to associated Web pages.
Proposal PDF: File:Events-proposalforupdatedschema.pdf
Note from WebSchemas/Singularity a property re-naming (in progress, Mar 2012):