I'm worried about this fork. Scala is far away from being a wildly used industry language. Yes, there are some well known companies using Scala, but how many of them develop a really big part of their software with Scala? Not so much. If you look around you'll see Java, C#, C, C++ (depending on the business) and actually not so much Scala. The ones who think forking Scala does help the community are in a reality distortion field.
Take a look and Linux desktops to see that diversity is not always good, especially if you're in a niche.
I think there is a lot of Scala usage you perhaps don't see. As an example from the corporate world, at least six major international banks (probably more) are doing a significant amount of their development in Scala, some with teams in the hundreds. That's a solid market for Typesafe right there, which isn't going to go away overnight, and won't be stirred by the existence of the Typelevel fork of Scala. Furthermore, they should benefit from its existence because it represents a means for more people to be able to contribute to and enhance the language, without negatively impacting the stable, reliable releases from Typesafe.
Take a look and Linux desktops to see that diversity is not always good, especially if you're in a niche.