I'm hoping this event is on AppleTV. iPhone 5S should be awesome.
It likely will. It seems Apple is thankfully catching up and making sure their big events are broadcast live to all of their customers who want to see it. It's only fair. They're the world's most valuable company and most of the smaller tech companies do it. With a launch as big as the iPhone, NOT broadcasting it live would be silly.
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iWatch seems like it would be crammed in at this or even an Oct. event. I would think a March release would give a great amount of time to let all the other gadgets have their time in the spotlight.
I don't think we'll see an 'iWatch' until mid-late 2014. I don't think it's a product which is ready for the market yet, regardless of what Samsung is doing. Whatever they're doing they're doing it because they think Apple is doing it except Samsung will do it badly.