What is the 'Salvage Roadmap'?

Right now they are working on the power systems (resource generation and item control). They are also working on getting physicalized ship components, however, due to the large number of ships, this will take a while.
After those two are completed, they will begin working on salvage (and decide what type of salvage they will release first; hull scraping or component retrieval, etc.).
After they release the first implementation of salvage, they will release different types of salvage later down the line (like how they have done with mining; from ship mining to FPS mining).