I'm also concerned about ISOT TLs that involve fictional things as well as historical stuff (like krinsbez's 50 After the Ultimate ISOT, Griffalco's ISOT TL, or even my own O Brave New World reboot).
If fictional stuff gets moved to Books and Media, where will this category of ISOT TL go?
Like I said I don't have an easy answer for everything, though the sort of stuff your describing should certainly stay in ASB from the sound of it.
I just think it would be easier either to say all fictional timelines, or timelines based on published works go in ASB whether being ASB or not, or they have to be split depending on the work.
Is a timeiline based on TL191 ASB? What about Star Trek? Is a Star Wars timeline ASB if it strictly follows the internal universe's laws?. As it is the ASB forum description says
alternate histories taking place in fictional universes go in there, so even 'realistic' timelines should go in there (is TL191 a fictional universe, or does it count as ours? Is Star Trek a fictional universe, or just ours in the far future?).
The problem I see in sending all fictional timelines to ASB is that the new Books and Media essentially becomes a Chat forum - no creation, just discussion. If that's what's wanted then fine, but it should be clearly spelled out.
On that topic, what about some Non-Political Chat threads like
All purpose Anime and Manga discussion thread or
The Official Cthulhu Mythos Thread or
A Song of Ice And Fire Thread? Shouldn't they be moved to Books and Media?