WI:Crislam a Major Religion

Whether if it's OTL Nigeria's Version, or Arthur C. Clarke's The Hammer of God's Version, is it possible to make any version of this Fusion Religion into a truely Global Religion after 700 A.D.? (Or is this just another ASB/Crack WI?)
 
So basically, "There is no God but God and Jesus is his messenger?"

Kinda, it's pretty much a form of Trinitarian Christianity that believes Muhammad was another but an extremely important Messenger of Christ in the OTL. (Yeah, go figure.)

Still, since their is no mainstream version, Chrislam in ATLs or in the Future could just be a branch of Islam that gives Jesus more importance.

What does everyone else think an "Offical" Chrislam would look like?
 
Say the Catholic Church take it up, then you have the Magisterium, so it's not so open to interpretation like Islam.
 
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