and rather accurately too.
Given that the Soul Gem/Stone has NOT appeared in the movies yet and that Adam Warlock is coming in Guardians 3, I predict that Thanos in Infinity War will have obtained the other 5 and that Adam will be in Avengers 4 with the Soul Gem/stone.
In the comics the gems/stones started with Adam Warlock and his soul gem and its deus ex machina unknown powers.
Then 5 others are created and Thanos gathered their energies to make his synthetic gem to wipe out the stars one at a time for Death.
Warlock puts down Thanos.
Thanos returns years later, learns the true nature of the gems, gathers them and names them Infinity Gems and builds the gauntlet.
Surfer and Drax get pulled into the soul gem and Surfer alerts Warlock to the threat of Thanos and Warlock sends them back and vows to join them in the battle. Warlock's time in the gem enabled him to understand his own cosmic powers better as well as nature of the gems. Having spent so much time in the gems makes him the undisputed master of the soul gem and links him to the other 5.
Though they say Warlock is not in Avengers 3, he likely will be in Avengers 4 and be the key to stopping Thanos......IF the movies stick with comic lore.
Captain Mar-Vell stopped Thanos when he had the Cosmic Cube
Thanos survived that and was later turned to stone by Warlock.
Thanos' ghost is sent by Death to collect Mar-Vell
Thanos is later fully revived by Death and he builds the gauntlet only to be thwarted by Warlock.
years later in Annihilation, Drax finally fulfills his destiny of killing Thanos but Thanos was later revived.
The Drax we currently have in the movies is NOT capable of taking down Thanos unless there is a major revelation and upgrade coming for him.
No one else presently shown has the sheer might to stand against Thanos for long, with or without the gauntlet.
But Adam Warlock is coming....