Israel will be constructing a railway linking Israel with Saudi Arabia.

Answer

These 'developments' are old hat. There is no underlying secret. The evil deeds of the Saudi Najdi regime, the kuffaar governments of the Arab states in general and their links and co-operation with Israel have been known for decades. Currently, the evil so-called 'secrets' and plots are surfacing with greater clarity as a consequence of the command of the Iblees, Trump who is the master of the spineless kuffaar rulers of the Arab states.

There is nothing surprising in the proposed railway link which will further cement the ties between Israel and the traitorous kuffaar governments of the Arab states. They have sold Islam and the Ummah down the sewerage drain. All of them are kuffaar and dancing at the behest of Trump.