Ouch, I don't know how much of an impact this will have on their gaming division strategy honestly, but its something to be aware of. If they do actually pay the fine thats another 690m they don't have to provide support to other endeavors and even to MS thats a lot of cash.
Ultimately I don't think this is going to be a big factor in any game development, releases, or quality, but it could impact the business side of game division decisions going forward...well actually all divisions of MS. But I have to believe MS is looking for a way to to recoup some of these losses they have taken this year unexpectedly (ie "warranty extension" and this). The only question is what markets will they focus on to make that recovery?
I somehow doubt it will be gaming, but you never know.