I started reading this in the last one or two pages or so. So I didn't see that discussion.
If Russia gets what they want with Crimea (and they most likely will, none of the powers want to risk a nuclear war if they fight Russia directly), whats going to stop them from trying to get pieces of former soviet sattelites? If they even have any plans to.
There wasn't much more to that discussion than what I summed up, so no problem.
The question is whether they will try that or not. In case of the Baltic states they can't (NATO members), in case of other states like Belarus it's highly unlikely (they are still close allies, so there is really no need to at this point).
It all depends on what happens in Eastern Ukraine now, where there are Russians and some support for joining Russia, on a much much smaller scale than in Crimea though. If they do that, well, there won't be a nuclear war since the West won't intervene directly, but probably war with Ukraine, which the West will support economically and indirectly with military logistics. Also we'll have another Cold War, with full sanctions and diplomatic isolation.
That is going to be very interesting in the next days, now after the referendum, things could normalize somewhat if Russia is content with Crimea or become very ugly and dangerous should this become an open military conflict with Ukraine.
My personal opinion, or rather what I hope will happen, is that Putin will now be more willing to negotiate, with the goal of somehow legitimizing the annexation of Crimea, as a bargain he might recognize the government in Kiev. The West will employ sanctions and try to refuse, but it seems likely that Crimea will remain with Russia, recognized or not. This has cost Russia so much money and diplomatic influence already, a further escalation would be insane and might be much less popular in Russia than the Crimea thing.