One of the nicest trends for me has been pairing them with 3D printed adapters and accessories, which has really started to dent manufacturers' attempts at proprietary accessory platforms. I've bought or commissioned 3D-printed track rail adapters to use a DeWalt router on a Kreg track, a DeWalt 20V battery adapter to power 18V Ryobi tools, and dust nozzle adapters to connect my shopvac hose just about every tool, and they all just seem to work without much fuss.