Commander Wars may as well be the next AW. In fact I was thinking of opening a section of the Competition Room (Which hasn't been touched in months, I only recently merged all the maps and tables into one page), at least there people wouldn't have to copy the map, they'd be able to download it and stick it in a folder. They'd also be able to upload the replay files the game makes, easier than making a video.
I'd be more hopeful for a new AW by IS if Days of Ruin would just come out in Japan. They already translated it, so the only thing they'd have to pay for is production costs for the cartridges. At least produce 10,000 copies and sell them in Daigo Temple or something.