This year's LDAPcon 2017 will be in Bruxelles 19th-20th October, 2017.
Kudos to Paola PENATI and Benoit MORTIER at OpenSides for organizing the
event.
If you'd like to submit a conference talk then please have a look at the
CfP:
https://ldapcon.org/2017/call-for-papers/
Submission deadline : 28th May