The likely scale of a future Russian nuclear combatant

How large might a future Russian nuclear surface combatant be, and when could it appear?

It would probably exceed 15,000 tons and, even with a program beginning soon, would more likely appear in the 2040s.

The follow-up separates a plausible ship concept from the industrial time needed to realize it. A renewed Russian nuclear surface combatant would probably be at least 15,000 tons. Even if a program began soon, completion would more likely fall in the 2040s than the near term.