If you ask me:
The idea that Putins regime will fall by a coup is Western copium
The idea that Russia will start a new Euraasian co-prosperity sphere is Churka/Ivan copium
What will happen: the ethnic Russkies will take the anal fucking from the Western sanctions and will do nothing while Putin hands himself over to the China man in the long run.
Let me see... in 1991, right at the end of Desert Storm, George Bush Sr. told the Iraqis to start a rebellion and take out Saddam Hussein. The rebellion started out good for a few days in the south, then was brutally crushed. The US maintained their 1990 sanctions and added a few more, leading to the oil for food program, and Iraq responded with their monthly "free food and staples" program, which had things like rice, sugar, flour, etc. for every family. The head of the household enrolled his family, and all family members were kept in a government database, and it was a smoothly run program and kept Iraq chugging along (and not starving) until 2003, when the US went full-scale beastmode on them.
So from 1991 until 2003, despite having had all their bridges destroyed and much of their infrastructure beat up and suffering crippling sanctions, Saddam still managed to rebuild most of the important bridges in the span of two to three months.
Also during those 12 years, Iraq had unfriendly borders along the most sides, with Iran, Saudi, Syria, and Turkey/which began at Kurdistan. Because they had no sovereignty over Kurdistan, which is a huge chunk of their oil and agriculture. Iraq was allowed to finally sell oil but only in return for food, the so-called "oil for food program" adminstered by the United Nations.
There was a no fly zone in the north, and a no fly zone in the south. There were daily bombings (by NATO) against air defense positions all over the country. That meant that Iraq had to allot money and resources to keep his military at a heightened state of alert. And during this time they did have to deal with uprisings in western Iraq, and even sent a force to help one side of the Kurds during the many times the Kurdish factions fought each other in semi-independent Kurdistan.
Granted, the Iraqis have the highest IQ of all the Arab countries, and they have a very strong tradition of civil society due to centuries of occupation by the British, Ottomans, Safavids, etc. Their entire civilization was smashed to pieces when the mongols invaded, but they bounced back.
Point is, if the Iraqis could still build palaces and have giant public works projects and feed everybody while all this was going on, then sanctions against Russia have even less chance of damaging Putin but will only bring misery and suffering to the average Russian for years to come, if not decades.