There are 14 years between FSX and FS2020, which had been five versions in good old times. How much FS95 add ons are used in FSX?
MDL and BGL are sequential languages to describe a model - there is no way to make them parallel. So IF there would be a way to bring this code to FS2020, the complaints would be soon that it is too slow.
On the other hand, as it looks to make scenery or aircraft in the quality that it enhances FS2020 is much more work than it was in FS2002 times - so until we will see such a wealth of addons as for the former generation this may take a decade - unless 10th of millions of users create such a big market that 1000ds of professional programmers can be paid. So please - be patient.
