Japan and Italy are in different situations. Whilst Japan has quite a few more options for the future, the F-104S ASA is pretty much one of Italy's only options for a domestic high rank aircraft. We don't plan to introduce it ahead of time without some of its key and defining features. Other aircraft for Italy are planned. The F-104G is one of those that was suggested and requested.
We are also not going to introduce it with its full weponary that is far ahead of anything else currently. No matter how "close" some perceive it to be.