The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
You might be interested in this post over on the unearthed arcana subreddit. It contains the play notes a group was using as well as a bunch of writeups for the planeswalkers as 5e monster style stat blocks.