Aegis was a somewhat clever way to inhibit mudlfation. It was a gear reset without being a gear reset. The problem is, clever as it is, it only works once. And they hit the point where they were going to have to do it again.
Supposedly aegis will still be in Kaidan. They're taking some extra time to release kaidan because it has to be integrated into the new whatever they're doing. So I really don't expect them to ditch it, but MAYBE they'll do something about the way that it grinds up. They're putting gear levels directly onto gear anyway and that's all that aegis was. To be fair though it was fairly well balanced. .4 aegis made all of the solo kaidan content pretty much trivial, and you could get 1.4 solo, easily, off basic story missions. .9 made outdoor kaidan faceroll, and you could even get that solo with a little more time investment.
It really looks like they're making the game console controller friendly to me. The new scheme just looks tailored for a stick instead of a keypad. I've skimmed the devstreams. They take 60 minutes to deliver about 5 minutes worth of actual information. I doubt TSW gets pushed to any console. I bet this is just practice. Their next project I bet is a console project.