In the following post Steve Lee explaining why Powershell 7 and not 6.3.
https://devblogs.microsoft.com/powershell/the-next-release-of-powershell-powershell-7/
They will remove Core from the name... It makes sense if you check the .net Core Version 3.0, that would be used for PS 7, it should have all the underlying APIs and a high compatibility with Windows PowerShell 5.1. So you don´t have to struggle with compatibility issues, like in previous PS Core versions. Sounds like it would be the perfect mix from Windows PowerShell and PowerShell Core.
Microsoft said that PowerShell 7 should be available May 2019!
