The EMMI are absolutely the evolution of SA-X, the director even said as much in an interview for Dread. But its pathing and scripting are far more advanced, tough to fool and to escape, making it pretty fucking scary.
As for what inspired Dread’s robot enemies, Sakamoto told reporters on a Zoom call through a translator this week, “That would be Metroid Fusion, and that would be the SA-X gameplay. [...] The whole entire concept hasn’t changed over these 15 years. Really, it was that Samus, this powerful warrior, would be confronted with some overwhelming enemy that would chase her. That was the idea.”
Also, does this game literally have Adam in it giving you directions as well... but, uh, more subtly? =)
Same schtick, but he's not as overbearing. Fewer interactions with him, and he provides you with general objectives, not "go fix the air conditioning unit, you fucking pleb." Oh, and he regularly provides you with blunt updates on how underpowered you are. A real sweet talker! But most of the zone to zone exploration happens with only light commentary from him. Nothing on the level of the Fusion talk, which from memory went something like this: "THE NEXT ZONE IS VERY COLD AND YOU WILL BE INJURED BY THE COLD. SO WHEN YOU GO INTO THE COLD ZONE TAKE CAUTION THAT YOU DO NOT LOSE YOUR LIFE. NOW GO DO IT." Fuckin shut uppppppp