A support request is typically closed when you confirm that a resolution has been reached or if VMware does not hear back from you after three attempts to contact you during a ten day period. Support requests may also be closed if they cannot be resolved, or if VMware chooses not to resolve certain issues, with acknowledgement and agreement from you.
Your request will remain open and you will be contacted when a fix is available in a production release. If an experimental build to address your issue is posted, VMware will contact you. You can also sign up to receive notification of updates and upgrades as soon as they become available.