I wasn't reading TAR 19 threads a few weeks ago, so I don't even know what that rumored task was, but I'll point out that the producers are able to change a task or a location on very short notice; in fact the samba task in Rio on the first leg of TAR 2 was a task that had to be moved at the very last minute.
I would not presume that whatever that rumor was would necessarily be what is done now. (Another example was the Camp Casey task location in Korea, while used in TAR 17 the original reports about it were seen in connection with the filming of TAR 15, IIRC.)