Sturm won't be sunset, but Drang will be? Shouldn't Drang be the exception, since Sturm is dependent on it?
Drang and mini tool will have a beyond light version with no max cap at the gunsmith with pre set perks on them. Mini tool is supposedly getting some nutty perks, which will promote that old combo in pvp again.
You'll be able to pick up a new version in beyond light from the gunsmith.