My speculation is that you are going to be collecting shots/gems to build the Infinity Gauntlet. The name "Infinity Quest" is reminiscent of "Thanos Quest", which is the two part story of Thanos going up against elders of the universe to collect the stones originally. This came out in 1990, after they brought back Thanos to life in Silver Surfer 34. Originally, what became the story "Infinity Gauntlet" was going to be captured solely in the Silver Surfer comic. However, the storyline took off, so Marvel was looking for ways to capitalize on the momentum. Thus, the storyline was extended in Silver Surfer for 16 issues (year and a third), with the Infinity Gauntlet as a mini series that came out of Silver Surfer 50. As part of this, you had Thanos Quest.
I don't expect to see any of the Thanos Quest characters in the game and it will be more in alignment with MCU in my opinion, but this is where some of the names are coming from.
As a side note, Infinity Gauntlet was followed by Infinity War and Infinity Crusade. Neither of these are as good as the Infinity Gauntlet storyline (Silver Surfer 34-Infinity Gauntlet).
If there are any comic fans that have not read Thanos Quest, I highly recommend it. Great, great character story. You can read it on Comixology.