Nevertheless, the remaining duo have uploaded four new songs to their Douban page, supposedly in preparation for a new album. Once they find a bassist. You can check the songs out here.
At the same time, the two of them have formed a new project called B-Side Lovers. There's no music up on the Douban page for this new band, but according to Pete over on CMR, they sound like "Siamese Dream-era Smashing Pumpkins".
Whatever is going on, it seems it's the end of an era for Hedgehog, if not for the band entirely. It's a shame, Hedgehog were a great band and one of the brightest in China. Personally, some of my best memories of gigs in the country have involved the band and it's a shame that they've had to go their separate ways. I suppose we'll just have to see where Hedgehog (and B-Side Lovers) go from here.