PLAY. THE REST. OF THE GAME.
Unfortunately, there isn't THAT much else for some of us to play. I personally am stuck on turn 4 (and surely turn 5 after that) and Titan EX, which kinda locks out a good chunk of the stuff that was added (including alternate paths for weaponry). All I can do is keep grinding myths until Echo buff hits coil and/or I happen on some miracle group that can actually beat those things.