The Japanese version shows just a liiiitle bit more gameplay before they show off the 1st person mode.

YouTube - Wii Metroid: Other M gameplay video [JP ver]

I also don't like how they're bringing the anime melodrama to Samus, but unlike Croyles I still think the Ninja Gaiden games have The Best Combat of any action game. Bayonetta came close and Ninja Gaiden 2 came close to ruining it, but it still feels the best to me. So I look forward to playing it.

Although as far as 'Nintendo-published Wii games before June', it's 3rd on my Want list. First is Sin & Punishment, then Mario. 4th if you plug in Atlus' Trauma Team just behind Sin & Punishment.