Hiroshima has signed pitcher Dioni Soriano to an ikusei contract. Gwynar found out that Soriano had been playing in the Island League this year. I wasn't able to dig up much beyond that, but I did find his page on a Facebook clone. We'll see if Dioni turns out to be as good as the last Soriano the Carp had.
With the player acquisition deadline nearing (July 31 JST), we should see one or two other acquisitions.