It's customary? I'm not sure about that, especially when it comes to ASW fighting games (compounded by the Atlus association). We'll get it, but I heavily doubt there will be a simultaneous announcement for a global release date, especially considering Europe.
But actually, let me redact my previous statement that a console release date for Japan would need to be set before an NA announcement. The console release for NA was teased and confirmed only two weeks after the JPN console release was announced on February 3, 2012. The actual JPN release date was only announced on April 18, 2012.
So, I'm actually expecting an NA release announcement before JPN's release date becomes something else than "summer 2014."