The other option is that I'll make an extension project for it under the ShrinkWrap umbrella if you don't want to maintain this.
It's not that I don't wanna maintain this, I just don't see why such completely independent spi (see your posted interface) needs to be in deployers.
Deployers api is not really gonna change much, and apart from obvious integrations - JMX - I'm not keen in keeping external integrations under Deployers umbrella.