The Norton Internet Security team will release a fix/an update when the Windows 10 OS will be Release to Manufacture. That's the latest stage in the development cycle. You won't see an update until mid 2015. Usually, RTM versions of Windows are released 3-4 months early. That's the approximate date when Norton will have Windows 10 support.
On a side note, Windows 10 is currently at Tech Preview which is not even alfa or beta. You should wait more before making it your daily use OS.