I think SB is still one of the best infantry simulators on the market. There are quite a number of ASL guys who prefer a quick SB game, when the ASL handbook looks too daunting... In my opinion, the real problem is currently the price-performance ratio. The games are visually not even last generation, which I can personally ignore, but in the current state the graphics are unlikely to pull in a new generation of players at the high price point per game.
Lock ´n Load, which might not be everyone's "cup of tea", is sold for a fraction of the price (depending on your location) and offers comparable scenario modules, for instance:
https://store.steampowered.com/app/11499...l_Digital/
I would personally hate if SB would visually move into the LnL direction and the "Top Down" mod was a great improvement and a labor of love. But I feel that SB needs a major, visual overhaul for maps and units comparable to the PzC Gold Standard to stay alive. Although a completely different scale, but maybe you guys know the Blue Max Mod for "Strategic Command: World War I":
https://www.matrixgames.com/forums/tm.asp?m=4719822
Is there a guide or tutorial available somewhere how SB map and unit modding works?