I’ve been reading that scenery should be compatible and there have been some recent additions of city scenery hitting the Marketplace that I’ve been interested in.
However, I’m concerned that this content may not be needed in 2024 if we get updated PG and better AI scenery. That would actually be the best outcome actually. 
Could my hopes for MSFS 2024 default scenery be too high?
I could be wrong, but I would hazard to guess that what they (Asobo) have is what they have.
They have been releasing City and World Updates with the PG they have and are actively collecting.
It may be that they can better implement it in 2024 based on code and technology changes but I doubt they release lower quality and are sitting on higher end stuff for 2024.
I guess updated PG vs. improved PG are different. It’s getting very dated now.
Handmade content should be better.
Hopefully was it in june/july the discovery series started for fs2020, hopefully we get something like that for fs2024 wonder if that might start after the vegas expo