I don't have to ask or tell aircraft where they will vacate. There is a NOTAM requiring aircraft to vacate at the rapid exits, and if unable, inform ATC.
The issue here is totally about the aircrafts REQUIREMENT to roll to the end, for what to me seems to be a very selfish reason. If you're brakes don't have time to cool down, don't schedule the turnaround so tight.
When landing on the opposite runway which requires a long taxi back to the gate, they always vacate.
I'm happy for you that you were the first controller to coordinate with approach for a departure gap, or change the departure sequence to maximise use of the runway. Has nothing to do with the A380 rolling through. Genius.