I think they came just to establish relations, not much more. From what it seems they'll partake in the Great Dwarf Alliance (GDA). They meet up fluff wise in this campaign, both want the crown destroyed (at least the Dwarfs say they want it destroyed).
Yes, I've been wondering about that. Who, actually, wants to do what with the crown?
1. The Dwarfs: destroy it (allegedly).
2. High Elfs: dito (if they can).
3. Empire: just as well if it turns out evil (it's made of warpstone - hazard a guess?)
4. Lizardmen: guess what - destroy it
5. Ogres: destroy it
6. Wood Elves: yawn - destroy it
7. Bretonia: see above
And the rest isn't an option for an alliance. So, the question is not who wants what - every "good" race wants to destroy it, every bad race would keep it for various reasons. That's general consensus.
The question is: Who would be willing to give away the crown to an ally to destroy it? That is where the GDA would break up. It hold together as long as nobody has the crown, and will fall apart once it is found.
If we empire generals agree to
give the crown away to an ally, we would have something on the bargaining table nobody else is offering. Of course, the ally would have to be worthy. Lizardmen are. The mere fact alone that we are offering the crown in case we find it is more than the dwarfs would ever do.
That's why I'm against the "council" idea. After all that has happened, a council with the dwarfs? If they behave like traitors, they must expect to be treated as such. If the wood elves behave like brazen brats, let them be sent to bed while the adults talk. And so on. Should we find the crown, we should discuss the issue with our allies and our allies only. If we deny other races the option to participate
right from the start, the chance is increased that they consider an alliance with us.