While things remain on simmer in Georgia, i am skeptical much more will happen.
As it stand, both South Ossetia and Abkhazia have been lost by Georgia to Russia. I do not believe any peace agreement will change this. While a ceasefire is being negotiated, this is not the same as a peace agreement. This might seem a win for Russia, but i think if this is all Russia gets, this will likely mean Russia lost over all. They already had defacto control of these regions before the shooting started. Since the invasion, Russia has been viewed as much more threatening by the West than previously. This will likely mean a gradual shift of Europe from economic activities with Russia. Eastern Europe, long wary of Russia, will militarily strengthen themselves against possible strike by Russia. The other Caucasian states and the Central Asian states will similarly act. Likely same with Turkey.
Had Russia blitzed Georgia completely, they might have won more than they lost with the current arragement. They could have then directly affected the Caucasian oil pipeline. They could have directly threatened the Middle East.
So why did they stop?
1. Russia underestimated global, Western Europe, and US response for Georgia.
2. They could not pin the Georgian military down for a quick destruction in South Ossetia or Gori, thus putting themselves at risk for a protracted war in the Caucasus they could not easily win.
3. They never planned for more than what they did. They might have lacked the resource for more, and or this was a punative strike against Georgia rather than a true invasion/war.
These three are not exclusive of each other. I believe likely #1 and #2, but also possibly #3.
Time will tell.