A reboot is just wishful thinking, I wouldn't hold my breath waiting for that.
The dmm version generally does well on both the all-ages and 18+ rankings, but at the end of the day no one knows. It's unlikely, but someone else could release a more modern td game that cannibalizes aigis' player base. Or the devs could just wake up one day and just say he we're out of ideas guys, time to close up shop and go back to our otomege.