I'd suggest some changes to make the SE trim level a more attractive option for North American buyers - looking around, those seem to be a large share of the unsold i-MiEVs out there, so I'm guessing that's what Mitsu pushed into dealer inventories (or maybe that's what dealers wanted to stock, figuring they'd be more profitable - hard to say). The more SEs buyers opt for, the more profitable the line will be for Mitsu, which can only help.
Most important would be a significant upgrade to the interior trim for SE models, along the lines of what Mitsubishi UK does with their "Tamashii Pack". If you haven't seen that, you can take a 360 gander here (remember to select Tamashii):http://www.mitsubishi-cars.co.uk/imiev/ ... r-360.aspx
Amazing how different the car can look with a little sprucing up, isn't it? The "just like ES, but browner with some chrome accents" interior of the American SE doesn't feel like much of an upgrade; multiple reviewers have griped about their SE Premium review cars' plain-Jane interiors (and jumped to unwarranted conclusions as to how awful the ES must be, probably just as damaging a comment in terms of the effect on readers).
I'd also recommend offering CHAdeMO QuickCharge as a standalone option for the SE (as it is with the ES), instead of forcing buyers to upgrade to the SE Premium. With a nicer interior and QuickCharge, I'd have seriously considered the SE, but I really wanted CHAdeMO and didn't want to spend near-LEAF money on the SE Premium, so the ES was my only choice.