Teclis return to Ulthuan dilemma?

In the post detailing the DLC and free content of update 7.0, they announced this about the Teclis campaign:

>Another addition to this update gives Teclis a starting dilemma presented in the first few turns which gives the player the option of staying put in the Southlands, heading home to secure the White Tower, or if you’re feeling particularly strong: opting to manage both regions. Each option offers rewards and costs and give you the option to play your campaigns very differently.

I am currently turn 21, stuck at war with Kairos and Tiktaq'to, very much eager to leave everything behind and restart my expansion from Saphery, and nothing has happened.

When is the dilemma supposed to trigger? Are there any requirements for it to trigger (Phoenix King favor gained, settlements captured, levels gained with Teclis...)? Does it require the Saphery faction to be still alive? I know that Tyrion and Alarielle like to invade it (to root out the Slaaneshi cults, of course, this is not a war of conquest, or so they say). I know that Imrik and Balthasar get a quest which triggers the dilemma when complete, but I haven't received any such quest either.