We aren't planning it, we've already done it. Dart comes with a command-line VM with a full-featured (IO, networking, etc.) set of libraries[1].
The performance is quite good and getting better[2], from what I understand.
[1]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-vie... [2]: https://www.dartlang.org/performance/io/