The clicking will get progressively worse. Eventually the joint could get bad enough to bind & explode. The clicking will get so bad that you won't be able to stand it long before it would get to the point of exploding.

CV joints are actually pretty strong & are designed to last the life of the vehicle. They typically only go bad if the boot is torn and contaminates get in. I'm sure you cleaned & lubed well enough that you won't have anything to worry about on your trip to Moab.