Yes, there's been a fair amount of discussion on Facebook.

It was cancelled a few days ago by the Mexican Govt - they were citing "safety" issues while the organisers and local government were alleging there was a "political agenda" to the issue. There were rumours that it may be moved to a different venue (never happened), and at one point there were around 300 riot police deployed around the venue!  

Most of the TS boyz didn't leave the US while JayJay seems to be having a short, unexpected Mexican break!!

The people who lose out most, unfortunately, are the fans who have already booked/travelled etc and may not get their expenses back (other than the basic ticket refund)