From experience with the beta and memory, your wife (and you) will be able to choose which version to play. Either yours with a ton of DLC or hers with none. You should both be able to use the version with all DLC, but not at the same time.
It's been a while since we tested this though so things might have changed, including my memory...
Don't wanna be pedantic (yes I do) but after a little bit of searching, the originally presented quote seems correct (without the "and" though, it seems). Your version is mixed with a common misquote "Slowly at first, then all at once." of that quote.