[Puke]

it will work fine if you have a single warp point at each end. and the AI can close warp points after moving with no problem (dirty AI always moves as if in a sequential game).

I have not tested it thoroughly, but trying this trick with multiple warp points will either (1) move your ship back towards the original sector to close the wormhole you specified; (2) fail because the hole you specified is not there; or (3) close the wormhole in the same place in the stack as the relative one you specified.

but since i dont know which, this answer is more or less useless to you. please let us know when you find out!