A couple days ago, an Israeli news source quoted an Israeli official that Turkey had agreed to send the Siloam inscription to Israel as a result of diplomatic negotiations. Turkey has since responded that the Siloam incsription will not be returning to Jerusalem after all.
Maybe someone just got excited too early, or perhaps a higher-up nixed the proposal. In any case, this is not the first time the attempt has been made. Nor, undoubtedly, will it be the last.
One can see a replica of the inscription in Israel. If you want to see the original 8th century BC Siioam inscription with your own eyes, you must visit Istanbul’s archaeological museum.