Except 1912 is too late for the Al Rashid. The Saudis had already retaken Riyadh in 1902. In 1906, the Saudis decisively defeated the combined Ottoman-Rashidi forces in al-Qassim. By 1912, al Rashid is ruled by a 12 year old boy, Saʿūd bin ʿAbd al-ʿAzīz, and the House was in disarray.
That doesn't mean the Sauds wouldn't be ousted from power in the event of a Central Powers victory. If nothig else, the Al Rashid would be udner the care of the Ottomans and the Germans and perhaps the young prince would be educated in the Ottoman Empire and Germany to help modernize the area.
What does this have to do with the Titanic surviving.
The Titantic carried several high profile figures that if survived, would've changed US history and that of the world. My colleague here is responding to the comment on how Saudi Arabia is inevitable after a certain point, even though the Ottomans would not tolerate them there down south and with a Central Pwoers victory, would be ousted.