The Assassin Lord

[Micbran]

The dialogue you get when siding with the Assassin Lord (a terrible choice by the way), seems to imply that the assassin lord has another quest for you.

Well, I need somebody to replace the men you killed. You look sturdy; maybe you could work for me.
You will have to do some dirty work for me, though, and you will be bound to me. Nevertheless, you may make quite a profit from this venture, if you are as good as you seem to be.
And do not think of crossing me. That would be... unwise.

Will this ever be implemented?

[Razakai]

Grayswandir wrote a pretty good addon that follows up on this. Adds another zone and boss to the game where you clear out a fortress and turn it into a base for the AL, which unlocks merchant randarts albeit at a higher price. So your choice is between rescuing and potentially affording another artifact later, or siding with AL and getting extra loot from the bonus zone/boss. If I get around to it I'm going to see about it getting merged with the main game but as this was like 3 versions ago a bunch of stuff is probably broken so it's a fair bit of work.

[Micbran]

If I get around to it I'm going to see about it getting merged with the main game

Razakai's Current Work List:
Cursed, Bulwark, Necromancer (probably), stoneshaper, DLC classes, balance, fixing assassin lord
maybe let shib take the wheel on this one?