I made a note about this last year https://hyp.is/i3iUMtOSEeudHIML10vbwQ/iannotate.org/2021/program.html (particularly with respect to some diversity for the IAnno21 session on a similar topic).
You should also have at least one historian: maybe Ann M. Blair, Richard Yeo, Matthew Daniel Eddy (@BookScribbler), or Markus Krajewski?
Jeremy Dean (@Dr_JDean) and Remi Kalir (@RemiKalir) are intriguing within both the education and technology space.
For a dramatically different perspective from most of both my suggestions and others I’ve seen on the thread, a Sketchnotes representative like Mike Rohde (@RohDesign) would be nice.