The short answer is it will not have much of an effect. Check the following link to read a very detailed study of how the increase in foul territory will effect runs scored.
http://www.hardballtimes.com/main/article/an-in-depth-look-at-dodger-stadiums-effects/
http://www.hardballtimes.com/main/article/an-in-depth-look-at-dodger-stadiums-effects/
Yeah, lotsa times I skip to the end on articles like this if I don't want to spend too much time getting through the details. The estimates I have seen based on this article say that the new foul territory will be worth about 1 run every 6 games, and would increase the park factor rating from 88 to about 90. So the bottom line is that the changes should have little to no effect on how you bet totals for Dodger home games.
