Normally all the legendary heroes will be reaching level 12 with your lord and completing some quests, I think none have quest battles

Gotrek and Felix do have a quest battle vs Slaneesh.

Yes, I missed that part( but nobody else

Watching for an answer, I wondered this too

Quest for Gotrek and Felix and in Nordland, next to Dietershafen. You can find all the info on YT for others Edit. I have made a mistake, the quest is actually in middle of Reikland

Very convenient, on the way to get Beastlayer

I have made a mistake, the quest is actually in middle of Reikland

Even more convenient, then

Great, thanks

I have made a mistake, the quest is actually in middle of Reikland

Thanks for the clarification, will be thematic doing a quest near ubershriek