The name of DC Entertainment's streaming app - as well as logo - has been revealed by the company: DC Universe.
Additionally, DC released new title cards for its first three offerings.
Here's the title card for Titans:
And the title card for Young Justice season 3:
And of course the recently announced Harley Quinn animated series:
No release dates for the DC Universe app or individual series have been announced. A mailing list sign up for more information has been posted right here.