NIS/NAV Engine Updates?

I have read all the notices (and quite a few forum posts here) regarding the transition from NIS/NAV/N360 to NS/NSBU.  I know that I can continue to activate and use NIS with existing product keys for the foreseeable future AND will continue to get definition updates on a regular basis.

My question is: will the NIS/NAV/N360 program engine (NOT virusdefs) continue to be updated (I believe we are currently at v21.6.xx.xx of NIS) any further or will v21.6 be the last program version released ?

Thanx for any replies,

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