I think Dart and TS will have more or less same audience - and both have their advantages. For me TS is just worse than Dart - not as elegant IMO (all in all -

I think Dart and TS will have more or less same audience - and both have their advantages. For me TS is just worse than Dart - not as elegant IMO (all in all - JS superset) and Dart has own VM on server, own consistent packaging system and good non-windows IDE support (Webstorm, IntelliJ).