It turns out CCP provided an answer earlier than announced.
I was listening in to one of the EVE Down Under 2020 sessions before and a new Scope Video was shown. It warned that the gates into the systems lost to the Triglavian’s will likely be shutdown in 3 to 4 days, to protect the rest of the gate network.
I presume that means wormhole only access from then on.
I hope Woollari is still about and updates Dotlan when that happens.
Edit.. and it is up on YouTube now: