They won't get any sanctions that will cripple them until Germany stops buying their gas (which they won't).I don't really get whats in it for Russia? I mean I can understand they'd like either an expanded Russia or puppet government but surely they must know that's never going to happen. They'll just get sanctions which will cripple them long term and lead to unrest and likely the eventual downfall of Putin. Wouldn't surprise me if he gets assassinated.
For every drop in value of their currency, oil and gas increase in price. They're absolutely fine and will be until Germany stops posing and does something of substance.