Yes, there is a way to integrate other Sat-Images, e.g. from Google Maps, but the way is very complex...
https://www.flusi.info/index.php?attachment/8972-aw-msfs-guide-how-to-create-a-custom-aerial-scenery-v1-1-pdf/
It would be easier, if Orbx would also offer the addons for MSFS. Technically it is possible..
But maybe there will be a tool like Ortho4xp for MSFS one day...