Here are the conference's keynotes
== Confessions of a Command-Line Geek: Why I Don't Use GNOME But Everyone Else Should ==
Bradley Kuhn from Software Freedom Conservancy (US)
Despite what tablet- and phone-loving pundits say, the laptop is here to stay. When a user wants to watch a movie on a train, they reach for the tablet first. But if they want to do actual, real work, they still prefer the laptop.
Meanwhile, software freedom should always be for everyone, not just technical users and software developers. The GNOME project was one of the first in this history of Free Software to realize this, and seek to create a free software desktop that truly allowed everyone to enjoy the software freedom that those of us had already happily found with Bash and Emacs (or vi 
years before.
This keynote will discuss why GNOME remains best poised to deliver software freedom to everyone, how GNOME continues to be the best welcome-mat for those who want software freedom, and why GNOME remains absolutely essential to the advancement of software freedom for decades to come.
We Want More Centralization, Do We?
Werner Koch from GnuPG (DE)
The roots of the Internet can be found in the move from large mainframes to smaller and locally connected machines (Unices or VAXen) Unix. Obviously there was a need to connect to remote machines in a convenient way and not only with manually managed uucp networks. Eventually in the mid 90ies decentralization was achieved and directly visible due to Gopher and the Web. With the move of the big search engines to a general service providers, things started to revert to the former centralization. The Internet still looks like a collection of many computers but in reality most system do not anymore work without access to, say, apis.google.com. Unfortunately desktops environments moved in the same direction. Do we really want to rely on other peoples machines?
Potential speakers for 2016 GUADEC
Nominated keynote speakers
Christie Koehler from Stumptown Syndicate (US, suggested here)
Why? The lessons she has learned regarding leading FLOSS communities are applicable to GNOME and GUADEC might really appreciate a keynote from her.
Dan Gezelter from Gezelter Lab (US)
Topic: Open Science
Why? Because it would be great to have a topic outside of the usual range of community talks, yet related to the location (Karlsruhe is a science hub)
Werner Koch from GnuPG (DE)
Willingness and Availability TobiasMueller had contact: Yes.
Why? Werner is an important figure in the Free Software world because he saves peoples lives with the Free Software he makes with his company for more than two decades. Although being a very strong Free Software supporter, he's got a quirky relationship with the FSF. GNOME and GnuPG can probably engage in very fruitful discussions.
Bradley Kuhn from Software Freedom Conservancy (US)
Willingness and Availability TobiasMueller had contact: Yes.
Topic: Confessions of a Command-Line Geek; why I Don't Use GNOME But Everyone Else Should
Why? Bradley is an important figure in the Free Software world as he is one of the few people responsible for enforcing GPL.
Jonathan Blandford from Endless (US)
Topic: Asynchronous internet; how to make offline a desktop experience and apps that leverage the internet instead of depending on it
Topic: Present and future of freedom in technology
Why? Basically he is an activist and "free book developer". In his talks he defends with great insight the case for free software/computing .
Bret Victor(US)
Topic: Teaching algorithmic thinking, bridging the communications gap between computers and humans
Why? He probably turns down more speaking engagements every day than most people get invited to in their lives, but he's right at the intersection of art and science (and education too.)
Late Suggestions
Karen Sandler (US)
Why? Has deep knowledge of GNOME and the free software community at large; works tirelessly to promote software freedom
Allison Randal (US)
Why? President of OSI, FOSS visionary, did a keynote "Free Software, Free Society" at LibrePlanet
Dawn Foster (UK)
Why? Doing PhD research on open source communities, writing for openDemocracy, speaking
Carrie Anne Philbin (UK)
Why? Leads the education mission for the Raspberry Pi Foundation, on the board of directors of the Python Software Foundation, most recently keynoted EuroPython and PyThon Australia with a talk Designed for Education: A Python Solution
Initial ideas for keynote theme
What makes a good keynote?
How to Nominate a Keynote Speaker
Send an email to guadec-list@gnome.org with the subject "2016 GUADEC Keynote Nomination: [speaker's name]" and the following:
Required
If you have it
Note: All ideas for the keynote are welcome. If you know of an organization doing cool things that you think we should consider reaching out to, just substitute the information above with the organization's information and give as many details as possible. Self-nominations are very welcome.