If Viki is a new voice-activated assistant, she is entering a burgeoning market that includes Siri, Google Assistant, Cortana, Alexa, and Bixby. Huawei has already announced that it will include Amazon's Alexa personal assistant on its next U.S. bound flagship phone. Nokia would also be challenging Google by employing a competing assistant on its new Android handsets.
Of course, there is the possibility that Viki is not an assistant and is related to some other project that Nokia is working on. Still, the name Viki, especially spelled in this manner, certainly has the feel of a virtual, voice activated personal assistant.
source: GSMInfo.nl (translated)