New Gmail update will include self-destructing emails

The upcoming, redesigned Gmail looks like it will have several new features to protect the privacy of your emails. 
One of these, according to TechCrunch, is self-destructing emails. Following the update, you'll be able to set emails you send to "expire" after a certain amount of time. That means they'll disappear from your outbox, and from the recipient's inbox. 
SEE ALSO: 'Major' Gmail update might convince you to use email again. Maybe.
You'll also be able to send emails in "Confide