they could add some tiers for workbenches , forges etc . for example furnace u use the old one half of the game , once u get to blasting furnace u should be able to smelt there all mats u will mine. so by progresing game u would be getting higher tier of workbench allowing you to craft newest stuff along with old ones , like artisan table should replace classic workbench imho since its more advances piece of tech .