This is a thread specifically for the war, not a general megathread (use the pinned /c/genzedong thread for that).
Please keep related news in this thread rather than making separate posts. Remember to include sources and avoid spreading rumours.
What can Saudi do or provide that US and Israel don't already have in spades?
Basing locations. Geographical limitations are a reality. If you cannot launch attacks from close by your options will be much more limited. If only a few of the Gulf state comprador regimes remain available to them in that region, that significantly reduces their tactical flexibility and shrinks the area to disperse/hide their assets over.
Taking Saudi Arabia out of the equation is a net advantage for Iran. There are still plenty of targets in the region without them.