The Call for Proposals is now open, and closes on May 15, 2015. As with past years, there will be a travel grants program to assist people with financial need. The application process for this grants program will be announced shortly. The deadline for submissions is the end of May 15th.
If you're interested in sponsoring the event, or in helping out with organization, please get in touch.
Start working on those proposals, and we hope we'll see you at DjangoCon US!