I'm working on a longer thriller adventure game in the same style, but not specifically a sequel to this or Peridium. Working on longer stuff is hard though! It's taking me ages compared to the gamejam style ones, so don't hold your breath ;)
I'm still plodding away on it, but it's slow going so don't hold your breath! That said, it's almost time for Adventure Jam again, so I might do another quick one for that!
Thanks! I don't think we'd ever have the energy for a kickstarter though, everyone I know who's done one aged about 10 years over the month it was active :P
We're lucky enough to be able to self fund our own projects at the moment. At least until we decide to make a huge Triple A MMO of course ;)