Final answer:
The successor to Mark Morris as Artistic Director of Theatre de la Monnaie is not named in the provided information, and as such, I cannot provide an accurate answer.
Step-by-step explanation:
The person who succeeded Mark Morris as the Artistic Director of the Theatre de la Monnaie in Brussels, Belgium, is not specifically mentioned within the provided reference information. Therefore, I am unable to confidently provide the name of Morris's successor at the Theatre de la Monnaie.
However, it is worth noting that the Theatre de la Monnaie has a rich history of prominent artistic leaders contributing to its prestige. The Theatre de la Monnaie is known for its innovative productions and as a space where various acclaimed directors and artistic figures have showcased their work, contributing to the global theater landscape.