Your child will not only Study Shakespeare but also other works, like a 19th century novel, a modern text and some poetry.
Each board has its own lists of books; for example, if you download the AQA specification on that webpage http://www.aqa.org.uk/subjects/english/ ... ature-8702
you will be able to read that concerning Shakespeare works, schools having chosen this particular board have the choice between:
Romeo and Juliet
The Merchant of Venice
Much Ado About Nothing
Within a school, different English teachers can choose different plays! So you cannot guess now what your child will study for his GCSE in 2018. However, what you can do is instilling in him a love and curiosity for Shakespeare plays!