As far as the installation is concerned, you can avoid a potential conflict by manually choosing a different installation directory for the Discovery products. This has to be done anyways with the current release if you intend to run multiple programs simultaneously (i.e. SpaceClaim and Discovery Live).
This article covers that procedure:
ANSYS Discovery: Preventing Unintended Changes to User Settings When Launching Multiple Discovery Products
Discovery runs on a different licensing system from the existing ANSYS products, so some adjustments might have to be made to your license configuration.
Your sales rep would be in a better position to answer any specific questions about reorganizing licenses for AIM and SpaceClaim.