I don't think that it would matter much in size, splitting it up...
The versions ain't, from what I can understand, not that different, other than the language use (and something in the exe-file). Most of the parts fixed, in the patch, are more to the game-engine, than anything else.
I would guess the gain, would not be worth the trouble (read money)
Which all in all, brings me back to the real question ! ! !
Why did they make more than one version of the same bloody game ? ? ?
One US, one UK/Europan and to top it off one German version, if I remember right (anyone know if they made an asian version)...
Not what I would call a good way, to run a business. Doesn't this kinda loose the money part, by doing something like this.