No, Thanos never re-aquires the infinity gauntlet. He defeats Eternity, and then embodies eternity itself, leaving his human form on a throne, lifeless, with the IG still in hand. Then Nebula's charred body removes the gauntlet and takes it from him.
From there, Adam Warlock escapes to the soul world, where he enflares his powers so much that it kind of short circuits the soul gem...causing Nebula to remove the Gauntlet. Then Dr. Strange teleports Hulk, Drax, Firelord, Doom, Eros, Nebula, and Thanos dog pile for it...only to have Warlock teleport to it, where he obtained the gauntlet. Then he dispersed them amongst the Infinity Watch.
Though Galactcus obtained all 6 gems to create The Crux...and I don't know how he obtained all of those gems.