Hi! 3 more concerns:

1. Would it be possible to allow for .csv exporting of learner data (like classroom data for teachers)?

2. LawHub will have KA content too, but it seems the free content there will have far less practice materials than there were on KA LSAT?

This is a concern for levelling the playing field, and I liked how KA LSAT offered extensive practice tests and section-wise practice for free. KA offered the best and most extensive practice library for free, extremely essential for ensuring equity in education.

3. LSAT Prep on KA remains useful for several exams that test similar skills, and for learning to read argumentative prose in general. I'd love to see this content reused in a general-purpose reading comprehension and reasoning course perhaps, one that also revives the erstwhile History and Literature passages from pre-digital SAT.

I see I'm not the only one who feels this way.  I actually LOVE the Analytical Reasoning sections.  I finished my LSAT over a year ago but still liked to go back and do problems for FUN!  I pay for Sudoku.  I pay for Crosswords.  I would pay for Analytical Reasoning too if it was available and I had to.

Seconding P B, I certainly think Khan Academy can host courses for fun and recreation too - I remember there being some content in Math along those lines, and even Programming lets learners build games and art, among other things. 

Writing to suggest the college reading course - reviving old SAT Prep content and LSAT Prep remixed with current SAT, and ELA content, to create a comprehensive mastery-based curation of content and practice for reading complex texts. The old SAT actually offered practice in sustained reading of short passages and answering a cluster of related questions, while current SAT Reading has moved to shorter passages tied to a single question.

Beyond testing and assessment, if the goal is to build reading competency, I think there's a case for bringing back those old History and Literature SAT Passages as reading comprehension practice. Many of those texts are taught in humanities courses anyway, and are often open-access on the internet on Gutenberg. (Although many critical and academic editions used and cited in scholarship are often from academic presses and not always open-access).