In that case, maybe the Germans send an ambassador to re-establish relations with Ethiopia after the Tanganyika Situation. Wilhelm III saw it as a betrayal of sorts, but Wilhelm IV is willing to look past it. Though I imagine things would become kind of tense if the ambassador actually ran into Vorbecks descendant/s. The Kaiser Still wouldn't be fond of "The Kaiser in Africa."

The empire will send Wolfgang von Fürstenberg. A pretty chill middle-aged noble who is obsessed with African history and culture, but is still extremely loyal to Germany, hence the tension if he meets somebody from house von Lettow-Vorbeck. He'd probably be asking questions about any decor that stands out strongly as Ethiopian, or be in a conversation about the Tabot and the Ark.