Not GP but if it were me and you don't care about the 12th gen chip, I definitely wouldn't cancel and re-order. I would guess the battery improvement won't be dramatic, but you'll end up with a little more cost and a longer wait time. The only thing might be the new cover. The old one is pretty flimsy and doesn't tolerate heavy abuse well. Mine is always in my house or a backpack so it's not been a problem for me, but if I carried it around publicly where it can be dropped and such, I might be concerned about it.