There are a couple of things we still need to change in the AST for the other tasks or bonus tasks. Do we need to implement all this till this Friday too? Or can we add this special stuff later on?
The AST extensions that are needed for the verification task and bonus exercises are tested separately.
You can add them later on and still get points.
Depending on your design it might still be helpful to keep the extensions in mind or implement them right away together with all the other AST stuff.