I, too, have read everything now.
A lot of Emil and Lalli speculation in the comments! Not shippy, but about their future friendship. (Which has, of course, been promised by Minna.) Also, at one point someone says they might clash because Lalli, who works on sending trolls to their rest, might be sympathetic towards them, while Emil might just want to burn everything in sight. Ha.
In retrospect, I find it weird that Lalli is so disinterested in everything new at this point. In Iceland, he stares out of the coach window quite happily. (And even in Mora, he will start acting curious.) I have also noticed in fanfics that some authors decide that Emil really is messy and have him spill stuff on himself all the time, but I can't remember any instance of that happening in-comic (unless we count the exploding troll).
Tuuri's level of curiousity will never change.
BTW, the Sami comment about them integrating is on page 115.