So I'm seeing a lot of really good ideas in here. I suggest these next steps:
All y'all who are kicking ideas around, self-organize around one or more that you are enthusiastic about. See if you can write up your idea as a project proposal. What does a proposal need? Take a look at the project ideas for 2018. You'll need a summary, a sketch of the "implementation" needed, a list of the skills a student would want to have to work on the project, a list of one or more mentors willing to work on the project, and a concrete "aim" or outcome to the project.
The application period for organizations begins on the 15th of January (four days from now) and applications are due on February 6th. I will include in our project application any projects that have solid proposals with listed mentors by Feb 1st. That gives me the weekend before the due date to get the projects formatted for listing.
As @polyester noted above, the awarding of slots is determined by the number of projects we list and the available pool of mentors, so the more projects and mentors we have, the more slots we may be awarded. Ideally every project should have three members for the mentoring team. One is the "project owner" who plays the role of stakeholder and reviews work in progress in light of the overall goals of the project. The other two are the primary and backup mentors. We used this organization last year and it was quite successful.
Keep up the great work folks. I'm liking what I'm seeing so far!