I think it's important to note that Eternal Sonata PS3, for the US release - had a bit over one month between the announcement and then the release.
And the actual US PS3 release was a fraction over a month after the JP PS3 release.
And when they announced 'no plans' for Eternal Sonata PS3 localisation, that was 3 months before the Japan release.
With Vesperia, they've announced 'no plans' for the localisation, that's 4 months after the Japan release.
If we're using Eternal Sonata as the basis for localisation, that time frame has well passed.
And, well, i'm still hoping ToV PS3 US comes out... but i'm just not expecting it to anymore.