The Exploreison has been located. Apparently it became under heavy attack by Lightness forces prior to the end of the war, but survived due to the peace that was made. The Exploreison had lost two of its protector ships and the remaining ones, including Exploreison, were all badly damaged and have thus been sent to space dock for repairs. What really happened to them during their journeys remain unknown as the military is keeping all the information considering their journey as classified information. We'll see if we can get some information about it.
After the Exploreison has been repaired it's presumed it will be sent to the Andromeda galaxy.