The new ruler could give Europe a withdrawal from Ukraine instead, I don't think this meaningfully impacts the viability of a coup.

Keep in mind, that's actually the wrong question.

The correct question is: Does Putin think that people who he things might stage a coup might be taking the Nordstream pipeline into account.

We are so many levels deep with this line of thinking, it gets really hard to reason about.

Oh, and it's less about what the the new ruler might offer to Europe, but how the new ruler is planning to get funding.