Sydney Siege: Is Lindt Cafe a distraction for something bigger?

Could the ongoing siege at Sydney’s Lindt Cafe be a distraction for something bigger that’s being planned by Islamist?  This is a question on everyone’s mind. A while ago, a Muslim woman who lives in Sydney shared this message on her Facebook wall:

A little while ago, I was speaking to a Muslim man on the street. He noticed I was too Muslim as the Islamic necklace I wear. At the end of the conversation he asked me:
“Are you going to be in Sydney for New Year’s Eve?” I said possibly, yes.

He said “Trust me, don’t go anywhere near Sydney on New Year’s Eve. It’s starting now” and said good bye and walked off

I now think to myself what if this Lindt cafe hold up is a distraction for something bigger?