The stars should not appear to get closer to the ship at all. Most of the game will take place in "realspace" which will have the ship moving at roughly 500 m/s. The sun in the system will be the origin and it will be possible to fly into the sun, but at 500 m/s that would take an awfully long time to get to the sun. (It may just be that I render the sun as a static object in the game depending on location in the system)
Based on that, a textured starfield I think would be pretty workable and realistic since the stars should just move right left and up and down, not coming at the player.
During translation to the warp the cock pit closes down and the warp is done without visuals (i'm probably going to add some hellish glows ala warhammer 40k but that's still pending)
I like the idea of textured starfield map simply because it requires the least amount of code... you paste it to the skybox.
Possible issues with this: i want each system to appear different, and not just arbitrarily different.
I like how EVE does it where each point of light is actually a system. I think that's more or less rendering a star on the backdrop in the same absolute location to the world though which I also think is very doable.