Best estimates I read were half a trillion euros. Many variables and uncertainties though, the war neds to end. The Pentagon has already ruled out a victory for Ukraine NATO in 2023. Ukraine will nor be able to regain all of its "sovereign" territory with Crimea included. With the recent escalation, the destruction will continue at a fast pace. Occupied Eastern Ukraine is the heart of the industrial economy. I recently posted some information on rebuilding Grozny ... it took 20 years.

EU proposes options to seize frozen Russian assets, but legal concerns remain | EurActiv - Nov. 30, 2022 |

The EU sees legal grounds to temporarily leverage at least €33.8 billion of Russian central bank assets to help pay for the reconstruction of Ukraine, sources say [_link]

— Bloomberg (@business) January 26, 2023

Total blocked assets of Russian National bank is €300bn.

'Sapere aude'