[lazide]

Most games, near as I can tell, the version on the DVD/BluRAY for the initial release is pretty much never finished - often barely playable. Even at 'release' date, the initial update is often at least as large or larger than the data on the DVD/BluRAY.

So possible? Sure, almost anything is possible with enough work and tradeoffs. It just isn't economical or likely actually faster given current bandwidth constraints and how they're distributed.

Especially if you consider that if there is network play, they'll have to be up to date anyway or most games won't let them connect, so 'offline' play is going to be a relatively rare situation. So why optimize for it?