HDN - Hydranet (Layer 3 DEX, with BTC integrated web-wallet). Basically solves all the major problems with scalability, bridging, trading, privacy, and KYC. This one
I don't remember exactly the old brand but it seems like they are not my favorite team to try my luck with. I have known them for quite a while and have intended to buy many times but then decided that even if you have excess money, there is no need to soak capital for too long with these things because the reality is that the goal has never been achieved with it. Depending on how you research and believe it brings opportunities, but in terms of scale, projects like this are difficult to say or they can pump/dump.