Prediction: 48% yes, 52% no. I honestly think the Hayir camp can win. I believe that people don't react well to a campaign that is too focus on "me or chaos" and in the current Turkey's environment there's probable many Turkish that are afraid to express a support to the No side.
An important thing to add, before the November election in 2015 (when we saw an increase in the AKP support) there was an escalation of tension between the turkish government and the kurdish population that Erdogan used in his favor. The coup was last year but the tension has decreased substantially. I don't think (from what I'm reading) that the conflict with the EU helps Erdogan the same way the Kurdish conflict helped him in 2015.
Very relevant picture:
For those that don't speak Spanish:
Politician: Either us or chaos
Crowd: Chaos! Chaos!
Politician: It's ok, that's us as well
