One interesting part of the ministerial statement (according to the local Toulouse newspaper) was 1.5B€ for R&D into aircraft with 30% reduced carbon emissions and specifically aimed at a short to medium range aircraft to replace the A320 with a prototype available between 2026 and 2028.
As the A320 NEO has only been available for the last few years and is achieving somewhere around 15% less fuel burn, a further 30% in this time frame sound very challenging.