Before I get even remotely excited about this - let's all remember that there was a war fought here, there were a lot of twin-engine planes that resembled Electras, including the Japanese Tachikawa Ki-54, the Beech C-45 Expeditor, and any number of others I can think of off the top of my head, lost in that theater of operations.
Plus, trying to positively ID a coral-encrusted wreck in 120 feet of water isn't as easy as it sounds. Sure, you and I can look at photos and say, "Yep, that's an Electra." But without reliable on-site measurements, or aircraft-specific, diagnostic artifacts, what you get from photos is usually no better than a WAG.