By 2018, there will be 40 of these new trams in Helsinki.
During 2013 and 2014 they are just testing two of them. I already saw it in the city with the sentence “Tässä menee uusi spora” (Here it comes the new tram) in the side of the tram. But the delivery of the rest 40 trams will happen during 2015-2018.
More info in http://www.uusiraitiovaunu.fi Cool website!
In the meanwhile, the older tram models are already an icon of the city:
Photo source: https://www.facebook.com/uusiraitiovaunu
1941 Photo source
Photo: David Corbacho