http://www.indieretronews.com/2019/06/sensible-world-of-soccer-2020-is-coming.html#more

And as it happened with the previous version (SWOS 16/17), it most certainly will allow to update the teams and players database, by copying the files from the new version into the GOG version.

No need to copy any files.
It will be a standalone game, for Windows! Without the need of any emulator or dosbox.

Looks fantastic ! Can't wait this :)