You can watch the Pearl and Gem being built at
Note, the almost completed cruise in the bottom picture is the Norwegian Pearl, and the sections being built next to it are for the Norwegian Gem.
In the top picture is the AIDAdiva which in my opinion is about half assembled.
That's about all you'll can see or read about the Norwegian Gem for a while. I will say you're more likely gather more new news on the Gem quicker by surfing to the NCL news web site.