The Insecticide world was interesting, and the character design was great, so I would definitely like to be able to visit that would again. The best part about Insecticide Part I (I never played the Nintendo DS version) was the adventure sections, so it would definitely be great to see an Insecticide game with just the adventure parts.
I'd definitely back it on Kickstarter, but I personally have kickstarter fatigue right now. I don't have any money to back anything else. If you do go the kickstarter route, I'd recommend waiting a while for fans to get back on their feet financially.