No, because Thanos wanted a perfectly random Snap, if it started to anticipate the snap's consequences, it wouldn't be random anymore.
I'm... really confused about a few things regarding Endgame (spoilers because it's about the end of the movie and one big event).
1- The "un-snap" is nice and all but... It's far from being as perfect as everybody in the movie seem to think this is. What happened to people in motion (cars, trains, planes) ? To people having surgery ?
2- Captain went to put back the Stones "where they found them". I'm really curious as to how Captain have created a Tesseract around the Space Stone, how on earth did he put the Spirit Stone back inside the Scepter (and gave it back to Hydra, inadvertantly confirming he is part of it in this timeline ?), and most importantly, how he re-implanted the Aether in Jane Foster ? Did he stab her in her sleep with the syringe ? That's not very Captain-y !
3- Real concern here, we should have never seen Captain "come back" as an old guy. Kinda fucks up the entire thing, and breaks the "we can't impact the future by acting on the past" imo. I liked the fact they explained it like that, thus the three "pasts" are inside their own timeline/dimension/whatever. But somehow, Captain went back in 1970 and made his life with Peggy, and somehow THIS timeline is cannon while the two other ones (2010 and 2013) are not (and they can't be). How ? Why ?
4- Talking about Peggy, isn't there an age problem ? She looks the same in 1970 as in 1945, that's weird af.
Also disappointed about what they did to Hulk/Banner. I was expecting some deeper look inside his two personalities. I kinda "hoped" the snap would have snapped Hulk but not Banner, explaining his current situation in Endgame, and the un-snap would bring back a fully angry Hulk to the battlefield. But they decided to explain Professor Hulk by, basically, a murder from Banner, who decided to entirely get rid of Hulk's personality to only keep the muscles. What ?