The Stadium is going to be partially exposed:-) I saw this same picture on the constructor’s website. The Trusses at the top of the stadium are going to be removed, That whole black section of Trusses is just their to install the translucent polycarbonate roof will be used which will give the building an appearance of snowy peaks, ensuring it sits in harmony with the landscape of the Imeretinskaya Valley and the Caucasus Mountains. (this is all from the Sochi2014.ru website)
This explains the stadium’s name
The Fisht Mountain reaches 2,857m above sea level and is one of the most famous mountains in Russia. In translation from Adyghe language, the name means "white head", "white frost" or "grey-headed". The mountain obtained its name from the ice at its peak. The shining snow cap also serve as the prototype for the original architectural concept for the "Fisht" Olympic Stadium. Incidentally, the transparent roof of this sports venue means that spectators in the stadium will be able to see the whole mountain from its foot to its peak.
The Stadium is going to be partially exposed:-) I saw this same picture on the constructors website. The Trushes at the top of the stadium are going to be removed, That whole black section of Trushes is just their to install the glass panels for the roof