In reply to Ant.

Integrating with Jetpack does not necessarily mean integrating into Jetpack. The first would be adding feature integration or leveraging APIs that Jetpack/WordPress.com offers for Jetpack users. The second would mean bundling the plugin as part of Jetpack.

While I am unaware of the long-term plans, integration with Jetpack would not change anything for users of the plugin who choose not to use Jetpack. That's assuming they go that route with anything in the future.