It's possible I guess, although the fact that Tag Heuer produced a "Calibre 11" edition watch at one point might undermine any legal case for such a claim.
No, I mean I wonder if the rumors about TAG developing a new version of the Calibre 11 movement might have something to do with the site not being called Calibre11 anymore. Honestly that would be the only potential good outcome from this mess. TAG being TAG I give it a 5% chance of likelihood