Oftentimes if you perform well they will hire you officially. But no, you're not added to a do not hire list after your temp job is done.
Answered - Account and Technical Services Representative (Former Employee) - Irvine, CA
I believe you can apply soon after your Temporary Assignment is completed. If you do end up doing a temporary assignment there should be a Blizzard Employee who you reach out / report to who can offer more information on this in regards to a time frame.
Your performance throughout the Temporary Assignment is also an extremely important factor for re applying. Doing good and ending the temporary assignment on a good note would be a best case scenario for applying to different departments or reapplying to that same department. The Blizzard Employee you report to during the Temporary Assignment will have more information
Answered - Customer and Technical Support (Current Employee) - Austin, TX