How can he reform Islam? We have the scripture and the ahadith with us, we can see what Islam is with the Islamic scholarly interpretation that can be easily accessed, even ancient scholars. The only thing he can reform are Saudi Arabia's laws, and this is another reason why a monarchy or democracy are absolutely ***** and of shaytan, a monarchy breeds unjust pampered rulers who go against Allah's command and a democracy props up unjust rulers by unjust people who are ignorant.
Allah's Messenger (s) mentioned towards the end of time, Allah will send an Earth Quake to Medina, and ALL the hypocrites inside it will flee it, but the believers will remain. They will all go to dajjal where they belong, so any person in Saudi Arabia that supports these shaytani reforms have sold their souls for a small price,
and we can see the consequences of the greed and evil that drove this behavior, not too long ago Saudi Arabia was prospering under sharia, now they're at war, that is one of the punishments Allah uses regularly, they're at war in Yemen, the rockets are raining down in Ridyadh, Allah will KILL EVERY SINGLE HYPOCRITE in the holy lands of the Arabian Peninsula.