Good news for everyone still trying to figure this one out.
Thanks to feedback provided by Raze I confirm there's a way to get the regular divine ending for Fane.
Apparently the issue is that small voidwoken which appears just before you enter the final area with Lucian, Dallis and co and talks to Fane how great would it be to have Eternals back. Engaging the small voidwoken in conversation, no matter how the actual convo goes, prevents Fane from having any other divine ending save for the one in which you bring Eternals back to Rivellon.
What I did was - I cleared the room with levers and source-infused dolls and proceeded further with other 3 members of my party. I parked Fane far away in the back. This way, just before entrance to the final area the small voidwoken did not appear the the Fane-less party. I went past the door with 3 companions and in the last area Fane automatically rejoined the group.
After the final fight I chose divine ending and the cutscene, companion dialogue and epilogue acknowledged Fane as the new regular divine - without Eternals!
Last edited by romson87; 18/12/17 08:03 PM.