The new version will be partially based on OSSN. One major change is that it won't require accounts to use it, but if you have a KidzNet account, you can use it to login to the new system and access personalized features.
It will be very different from the old version. The older version is just too slow and not that popular, even though it has been available for a few years now.
The upcoming version of KidzNet will be fast and more of a general entertainment platform with different types social activities. The old version of KidzNet will be integrated, but not initially.