The I3D Call For Papers is up: http://i3dsymposium.github.io/2020/cfp.html
Key dates:
13 December 2019 Paper submission deadline
20 December 2019 Extension for re-submissions (see details above)
10 February 2020 Notification of committee decisions
24 February 2020 Camera-ready deadline for accepted papers
9 March 2020 Poster submission deadline
5-7 May 2020 Conference at ILM in the Presidio, San Francisco