I imagine Bretonnia being so backwards and conservative that I found it difficult to grapple with the idea that the Bretonnian Damsel was the one bordline slutting it up, at least by Empire standards; but now that I think about it, the Damsels and Prophetesses in TWWH do wear dresses that are kind of formfitting, and in some cases arguably low-cut. So I can sort of see it.That explained the woman with the very odd combination of magics intertwined inside her and an outfit barely within the constraints of decency.
There might also be the fact that both Middenland and Nordland were trying and failing to do intimidating military build-ups at each other last we knew, and the Winter Wolves of Middenheim dropping the "of Middenheim" was probably a noticeably sore absence in their combat power.Oh, yeah, this is probably that. Leader of Ulrikadrin was, possibly is, pretty politically savvy, IIRC.
That said, I cannot imagine anything we've done recently that would be even remotely related to Ulric enough to call for the Ar-Ulric asking for us personally, to speak with us personally. I can imagine only three possiblities as to why he would specifically want to or need to talk to Mathilde, in order of least to most deep into left field they are:
First, as others have mentioned, Ulrikadrin. Whether due to politics, or a desire to restore an important part of Middenland and the Cult of Ulric's combat power. Thus, the Ar-Ulric wishes to speak to us as the highest ranking nominally Imperial representative in the area to act as a mediator.
Second, and just barely this side of plausible if you squint hard enough, this has to do with Hubert. We know that he is a Middenland noble, one that was allowed to continue to consider himself a member of his family and bear their name despite being a wizard, so possibly there's something funky going on in the background with that, and the Ar-Ulric wants to speak with us as the Court Wizard of Karak Eight Peaks and Hubert's nominal superior. That's iffy though, because unless background funkiness prevents it, I imagine it would be easier and more appropriate to contact Hubert via the Celestial College.
Third and most wild guess, that sixth divine player noted during the firing of the Eye, whom is suspected to be the Horned Rat/Sigmar/Grimnir, is actually for some unfathomable reason Ulric, and so he wants to talk to us as someone who was the most deeply entangled with that hold mess, especially at the level of divine attention, or as the Karak's Loremaster, who would be best equipped and with the proper mandate to go poke at whatever the actual fuck could possibly hold Ulric's interest.