The enclave is being set as a 'play'....mostly by the Moroccan gov't, but I would imagine some elements of the Spanish gov't wants to end the enclave arrangement.
So....by spring of 2027....around 10-to-20 percent of the Spaniard residents will have packed up and demanded some arrangement to resettling back to Spain. The federal folks will have to invent some type of tax-revenue bucket....in the 5,000 to 20,000 Euro range....to 'help' these folks, and the rest.
The 22 August 2027 national election? This one topic will be divided into two or more elements. How you resettle folks, and how the national gov't allowed this to happen.
By the end of 2027....there will be a date of final exit (probably summer of 2028) where the last Spaniard has departed.
Ceuta after that period? On my slum-to-be-index....1-to-10....it'll be near a '8' by the end of 2028.
The French reaction by the end of 2028? Well....I'll just stand and predict fencing-and-border-security are hyped-up to a maximum extent. Most of Europe will see Spain as unstable because of the migration issues.