Well... Tatyana has seen it with her own eyes, she saw it, next to are you ready: another one European styled sword "a la Japonaise" ... So we know its still there sitting next to someething similar.
The sad part is I received no answer from the Dresden Museum so far, perhaps it takes long to process their e-mails ...
There is also this of course, I hope she is OK with quoting her

:
Quote from Tatyana Dianova:
"
I have seen this sword many times in Dresdner Ruestkammer, in exposition together with other East Asian weapons (some katanas and kerises). If I remember correctly, it is stated, that the blade of this sword is of Japanese origin, and handle of Europenean.
Greetings from Germany,
Tatyana "