Do we have a better date on availability than just second half of 2021? I run a department at a college and we can't have a semi annual upgrades wreck software, so LTSC is what I've been using with our E5 license. I'm at the point where the software wants the newer features, but postponing a Windows feature upgrade for X months is still not a workable solution. LTSC is the best way forward for me since my licensing allows me to use it. It is time that I start working on new images in preparation for the Summer work to get everything ready for the Fall semester. I'll go with regular Enterprise if I have no other choice, but the next version of LTSC would be best.
If it matters, I'm KMS activated so switching versions isn't really an issue as they are all available to our license (Pro, Enterprise, LTSC).