I'm to post this here because we don't have a confirmation on this. I saw early this tweet and later SteKay did the same and asked me for a proper translation, and it has appeared on Sucks the whole conversation:
Jonander is asking if is real that Brenchel have been seen on Seville. When I asked him for the source of that info, he replied that it's coming from a friend, but he thinks that he's playing a joke on him.
So the accuracy of this info is not 100 % until we can find any other proof of it.