If we see it without too many emotions the following scenario is quite likely:
1. Ukraine and Belarus have to pay normal market prices. They will not have the chance to siphon Gas in the future. Russia will supply but only to its own conditions.
2. Polands supply will be ensured over Germany, but they probably have to deal with much higher prices.
3. For Germany very little is going to change. The gas will stay expensive, but the supply will be sure.
4. China needs gas, but they are unreliable and dangerous clients and the size of the pipelines is due to the long distances quite huge and expensive. Do not forget that the enonomic centers of China are in the far far east and not near the central Russian boarder. That means that the Russian gas fields that are interesting to Europe will continue to supply Europe in the future for infrastructural reasons. The fields in the Russian far east will be used for the Chinese market.
5. The Iranians will prefer the Chinese to the Indians since they have less political trouble with them. Therefore I am quite sure that they are going to buildt a dense net of pipelines between both countries. I would do if I were them.
6. Besides of that the new fields under the Barents sea will be used for liquified gas from Norway and Russia. This will be used by Poland and others to become more "independent" from Russia (which is impossible in the long run).
Russia does not have that many friends on this planet in the moment. Therefore I doubt that they risk their really good relationship with Germany (it remained good under Merkel) through idiotic muscle flexing in eastern Europe. It would simply not be that logical to do that.
Maybe, but where this pipeline would go?
If so why Iran would prefer them over the India which is much closer.
The Iranians will prefer the Chinese to the Indians since they have less political trouble with them.
What type of trouble?