Suppose the Moors aren't expelled to Morocco but all instead were exterminated on the spot as Spain reChristianizes the country. Or some other scenario such as expelling the Moors to another region, forcing all Moors to convert to Catholicism (or locking up those who won't until they submit) rather than outright choice to leave as in OTL), or simply allow them to stay under the condition they can't spread their religion (which opens a lot for alternate scenarios such as being forced to a ghetto or allowing them to interact with Spanish society as specialized workers such as bankers).
How does this affect religion in the region now known as Morocco?