The current system only looks at the currently orbited planet, and knows nothing about flight paths, effectively ignoring the platform until it arrives at a new planet. While I believe this would be possible to change, it would require a fairly significant amount of work.
I'm trying to avoid large code changes right now as I'm expecting to be fairly busy over the next week or two. If you are able to create a pull request on GitHub that allows supporting this without breaking existing features, then I'd be happy to include it that way.