If you go to the actual reddit thing...
They introduced the machine with Hawkeye just so they had a way to make Vision withotu it comign out of left field. It was never stated once it could bring people back to the life or anyting of the sort.Quiksilver is DEAD. 100%, he's not coming back any time soon, there are no plans. No LMD, no escaping bullets, no retcon. Kevin said he is dead and wanted to make sure people understood that.
Hawkeye had a flesh wound man, not liek he took bullets to the chest.
They mentioned the fast metabolism just as a way to introduce the "bsically hes fast and shes weird" one liner.
He shrugged off a scratch from a bullet... don't make it soudn like he took a real shot.
Wanda's powers are telepathy and telekinetic.... this isn't the comics
There are absolutely zero signs pointing to his resurrection but quicksilver fans hoping they can get him back and fan theorying things into existence that isn't there. That's it.