Undoubtedly it will be, in some way. There are companies that 3D print wargaming products already. Resin printers are becoming cheaper and better quality all the time. But there will always be some who prefer to pay the extra for metal figures to avoid having to use a home-based printer. For myself, I can print off whole WW2 armies of vehicles and figures in 1:285 scale - bases and labels integrated with the figures. But I really enjoy designing and printing the items that enhance a battlefield and are not available otherwise.
Only a few days ago, it was time to prepare another division of British and another division of Ottoman soldiers for WW1. Quicker and easier to get these from Baccus, so very much a mix-and-match situation.
Robert