As rumored in several forums Native Instruments will release Komplete 8. There will be Kontakt 5 be includet. On the Native Instruments website you can find some furter information on Kontakt 5.
“Once again, NATIVE INSTRUMENTS raises the bar with KONTAKT 5 — the latest version of the industry-leading sampler. KONTAKT 5 takes a bold leap forward with 37 new filters, four new on-board studio effects, updated time stretching, a new instrument bus system and more. As you will see from the newSTUDIO DRUMMER, for example, it’s a deep-rooted update to the KONTAKT platform, allowing us — and you — to create even better instruments and more powerful, expressive sounds. “
More info here: http://www.native-instruments.com/#/en/products/producer/kontakt-5/?content=1638