Nostalrius Begins - Quality wow vanilla realm (1.12)

For that following of quest, after finding Hendel soldier, Jaina Proodmore and Archmage Thervos should come to the player.
You can see on this video how it should works
https://www.youtube.com/watch?v=6XeuwJnqSd4 (7:40) : source from 4.0.1 but it didn't move since Vanilla !

For the moment, the player have to go back to Theramore to complete that quest ! It's not Blizzlike

Working on this same quest today and can't figure out how to get past this part? I'm in Theramore and have gone to Sentry Point, it markes the quest complete as "explore sentry point" but I get no quest giver in the tower, or back in theramore to continue on.

frousth have you gotten past the quest? How did you complete it?

Update: I see Tervosh is in the tower in Theramore...

Yup, this is the right way to go back to Theramore.
But after the fight against Hendel and his 2 friends, Jaina and Tervosh should teleport to player !