So now that LScript has been depreciated, which of these plugins are written with lscript?...
Not many commercial plugins seem to be LScript-based (only Rebel Hill's comes to mind). You can browse LScript plugins with an uncertain future here: https://www.lightwave3d.com/assets/plugins/tag/LScript/
This blog post ( https://blog.lightwave3d.com/2020/05/development-update-lscript-in-lightwave-3d-depreciated/ ) is not a new message. There was similar discussion back in LW11, when Python support was introduced as a successor. LScript was not even supposed to be supported in CORE ( https://docs.lightwave3d.com/lw2019/appendices/lightwave-3d-resources/lightwave-history ).