Depending on how Marvel (CU) treat time travel, technically, yes. But all 6 gems are too powerful for normal humans to actually use/hold. Of course writers forgot this during certain periods (basically when Hickman threw up on the Avengers and 616). BUT There was a story in 616 not long ago by Bendis (years in reality. :P ) where Kang constantly went back and forward in time to recruit heroes to fight a future version of Ultron. He kept losing and doing it again, meaning in one fight there was loads of instances of slightly different heroes from the same similar timelines and himself over and over. He ended up breaking the continuum, everything was stuck in this instance and time couldn't progress. It was only sorted when the Avengers went to just before the conflict started and convinced Ultron to lose to fix it.

Marvel time travel can be messed up sometimes.

They do need to take a break for a bit. Jumping straight into a new arch might be too much but without a hero to be the front of Marvel, like Tony Stark was, the direction is lost a little. Spiderman isn't an Avenger (not really) he's his own character, better than all of them but needs to be on his own so he stands out.

Which is why the ending of this film is kind of a blessing for Peter, he's not a sidekick. He's Spider-man.

The direction of Guardians is a bit in the air, isn't it? Obvious they are going after Gamora but now Thor will be the stand out character in what should be a team film. Out of potential sequels to know films they are doing, Guardians is the one I'm most excited for because of potential characters, hero and villains they could do in them. Adam Warlock, Moondragon, Genis-Vell and Quasar. I hope for great things from the series.

Hickman's run on the Avengers was awesome.  I'm not sure when it was ever a rule that there was a strength requirement to wield the gauntlet.  I mean Nebula had it, and she's not all that strong, plus she was literally half dead at the time.  Reed Richards and Iron Man both used it too.  

Where would you drop Civil War into that mix? Since that is more an Avengers movie than a Captain America movie I feel.

Hickman's run just had no direction and dealt with the Avengers like they were the Justice League, which was not how it should be, introduced New Universe characters in the 616 and then didn't really use them. His first issues was basically Iron Man saying 'We need to get bigger' over and over, like he was five. His Fantastic Four was good but the convergence story was just plain bad and pointless and was like a continuation of that which honestly, whole thing didn't make any sense and changes too much of the MU to fit the story. Of course it didn't help that Bendis was writing X-men at the time wasn't doing the best either and as mainly an X-men reader it hurt to see these characters written badly and without purpose. The only time I true enjoyed Bendis Uncanny X-men was at the every end with Matthew story, dropped New X-men pretty soon after he actually kept the young X-men around, terrible plot. Wood's small run was great on X-men. I'd say for me, Marvel started going bad after Avenger vs X-men. Bendis was writing too many books and they went from hiring award winning writers to hiring their mates.

The Infinity Gauntlet thing is silly, all uses of it by humans are in very modern times. Nebula (is truely Thanos granddaughter) is therefore part Eternal, so can easily handle what the Gauntlet and all 6 gems can provide, Iron Man, Reed and Cap? I doubt it but it's been written otherwise so, who am I to argue. 

EDIT: But most of what I say you should ignore, I'm a disgruntled fanboy who only reads SAGA now. :P