According to College Board policy, resubmission of performance tasks across any of the AP Exams isn't allowed. For AP CSP, the resubmission of the Explore performance task isn't allowed because of a task requirement.
We understand that in rare circumstances an accommodation may need to be made. This would hold true only for the Create performance task, and only in extreme circumstances (for example, if the student suffered a tragedy in early May after doing the work all year and wants to defer taking the exam until the following year). In that case, the Create performance task will be scored with the current year's rubric.