Not a fan of this decision. Considering they said in MSFS2020 that they planned to support the game for a decade, it seems very premature to release a new game like this, especially since it seems like very little has changed in the engine to warrant an upgrade to a new product.
I'm assuming this is going the Train Sim World route where everything gets brought forward into the next version, but there are exclusive features locked to 2024. Not a big deal if there will be a substantial discount for previous owners, but I think we all know what Asobo is going to decide.
I believe I saw seasons in the trailer which hopefully means we can simulate a full calendar year with appropriate weather! I also saw a lot of details with regard to the trams which is a welcome sign. It's a paradox game so the inevitable DLCs will come eventually, but this looks like a great starting point for the game.