I recently saw Guardians of the Galaxy Volume 2 this weekend and there was one thing that I was rather curious about and that has to deal with what is going to be coming up and that is The Infinity War. We already know of five of the Infinity Stones thanks to the past films and we also know the alternate names as well. We have the Tesseract (Space), Chitauri Sceptre (Mind), Aether (Reality), Orb (Power) and the Eye of Agamotto (Time) but we still have one that is currently unaccounted for and that being the Soul Stone.
Before seeing Guardians, I already had a thought on where we are going to be seeing this and that was at the beginning of Infinity War with that being the first Stone that we see Thanos taking from somewhere in Kree space that could have lead Captain Marvel in pursuit. But with the many post-credit endings for Guardians may have punctured that theory since that one of them revealed that Ayesha had created a new being called Adam and it is lead to be Adam Warlock who is the bearer of the Soul Stone.
But unfortunately, I think that the after the events of GOTG Vol 2 I think that they are going to be following the Adam storyline there since that I think that Infinity War is going to focus around Thanos gathering the few Infinity Gems that are on Earth, with Vision possibly getting killed in the process since that he holds the Mind Gem.
But Adam could come into action during the events of the sequel, since that according to a possible leak accidently by Zoe Saldana during an interview, that it is going to be called Infinite Gauntlet. On the plus side, Adam was a part of the comic series and there could be some discussion that could make Adam appear then instead of later on in the series. This would also make more sense as well since Infinity War was going to be made into two films being filmed back-to-back, that is now no longer the case and this could mean that we are going to be getting a possible different story for that film.
I think that we might get reference of for the gem in Infinity War with Thanos, Thor or maybe a Star Lord talking more in-depth about the Infinity Gems and how that that when they are all placed together they can be used by one wielder and that we could see the final Stone being shown in a post-credit scene.