Aside from a brief reference to his palace being at the Hill of a Thousand Spires, the Lord Ruler isn't mentioned again. Very little about him is news.
The eavesdropees are back to speculating. If the Elarials are getting a new Allomancer, is it going to shift any important power balances? What is their allied House getting out of it, if anything other than improved social standing? Nobody has actual answers to these, but they can easily entertain themselves with crackpot theories along the lines of Salmen Elarial hiring a Mistborn assassin to eliminate Chanil Urbain over a romantic rivalry.