Mini conferences will run on the Monday and Tuesday of LCA 2016. The call for papers for these are handled individually by the organisers of each conference.
Here's a list of the open CFPs, with close dates and links. If you are attending LCA and have a ticket, why not throw in a proposal? You can also buy a single miniconf ticket.
Open Call for Proposals
Multimedia - Open - Closes January 18 Multimedia Call for Papers
Documentation - Open - Closes ?? Documentation Call for Papers
Kernel - Open - Closes January 20 Kernel Call for Papers
Open Cloud - Closed
Functional Programming - Closed
SysAdmin - Closed
Open Radio - Closed
Open Source and Bio - Closed
Open Knowledge - Closed
Open Hardware - No CFP
Community Leadership - No CFP