This devblog from a couple of days ago explains how the wormhole colours will get updated in the upcoming ‘Oceanus’ patch. Importantly, you can still see the nebula of the system you are traveling to in the middle of the wormhole and the wormhole will still wobble to indicate how much life it has left in it. In case you’re wondering what those colours are, check out Tigerear’s blog post on the subject matter. It has everything you wanted to know and more :).
You can read more on Oceanus in this blogpost. No big changes as far as I can tell. The new cloaking effect might be nice though.
UPDATE: Patch notes have been released. The update will come out at sept. 30th.