Hi Breana,
Thanks for your feedback as Khan Academy is updating there content in the next 3 years it may be a possibility unfortunately though I can't guarantee that this content will be added I can say that Khan Academy has partnerships with the LSAT and new things being developed. In the meantime I will put your idea in a special section called a students wish list.
Thank-you for your ideas as Khan Academy Zendesk Community strives to make Khan Academy a fun and positive place to learn I and the Khan Academy Team appreciates hearing for students like you!😉