As with several others posting here, I am going to have to say "no dice" to Episodic Content, but please consider sticking with open world (at least for any large-scale RPG's).
On the subject of Kickstarters, the format seems to have worked for inExile, but the one thing I would do differently is offer potential backers the ability to play a demo of Pillars of Eternity. This would allow players to see what Obsidian accomplished in it's previous offerings. Those who like what they've seen in Pillars (or other games in the future), might have more incentive to back future Kickstarters (even if, to use a current example, Pillars of Eternity's kickstarter has barely been a year into having ended its kickstarter).