As long as the engineering done on them doesn't change, it may be an improvement. But, if Mitsubishi's engineering team starts following Nissan's standards, it may be a detriment. Yes, the LEAF has better range and faster charging, but the i-MiEV is more robust.
"Bear" - 2012 Diamond White Pearl ES with QC - 2/21/2013
"Koorz" - 2012 Cool Silver Metallic ES with QC - 1/5/2015
"Photon" - 2017 Bolt EV LT in Orange with QC - 7/31/2017
Solar-powered since 10/10/2013