Please only reply to this if you are posting a link to more key info... any questions would be best placed on the relevant thread. The purpose of this post is to collate useful info.
Summary of key info found on the forums here:
The next Era of Logos Videos + Q&A:
https://www.logos.com/future-of-logos?utm_campaign=promo-earlyaccess&utm_source=sfmc&utm_medium=email&utm_content=09262024_Logos_ENG_EN_Subscription-Comms-EA-September&utm_id=252561&sfmc_id=39464428
Signup here: https://www.logos.com/early-access/subscriptions
Pricing Details:

https://community.logos.com/forums/t/225401.aspx?utm_campaign=promo-earlyaccess&utm_source=sfmc&utm_medium=email&utm_content=09262024_Logos_ENG_EN_Subscription-Comms-EA-September&utm_id=252561&sfmc_id=39464428
What happens to a current subscription:
https://community.logos.com/forums/t/224288.aspx
“The good news is that next week, we will be adding all the new subscription features into Connect Essentials and Connect Premiere at no extra cost. (That includes all the different variations of Essentials and Premiere, including "No Library" aka former Logos Now customers.)”
https://community.logos.com/forums/t/224288.aspx?PageIndex=7
“In addition, we gifted the full feature set to subscribers who had been with us since Logos Now as a thank-you for their loyalty.” - Mark Barnes
Difference between Tiers
https://community.logos.com/forums/t/224288.aspx?PageIndex=6
“The only difference between Pro and Max right now is that you get access to about 100 more books in Max (though, in the future, Max will gain additional new features that will not be available in Pro).” Natalie Winburn
Chart of differences between subscription tiers:
https://docs.google.com/spreadsheets/d/1IOXGusuGt5_78fmO3q-GZtXOQrZgT6ampdaWkbBtS-k/pubhtml
What is a legacy fallback license and what is included:
https://community.logos.com/forums/t/225226.aspx?PageIndex=4
More info on future library purchases etc:
https://community.logos.com/forums/t/224861.aspx