Through Virtual Assistant Solution Accelerator, customers can rename Cortana, change voice, modify personality to create their own virtual assistants, and bring a batch of voice interaction skills.
At CES 2019:
Microsoft Virtual Assistant Program brings Microsoft Productivity Services, Microsoft Graph Integration and will support Google Services. There are also a series of intelligent services such as Microsoft Voice, QnA, Language Understanding and Visual Services. There are also Bot Framework functions across Skype, Facebook Messenger, Wechat, Telegram, Slack and so on.
Next, perhaps we will see Cortana less and less, but we will use more and more intelligent assistant services driven by Cortana's underlying technology.