The phrase "has been awaited" is correct and usable in written English. You can use it to describe a situation in which something has been looking forward to or anticipated. For example: "The announcement of the winner of the competition has been awaited for weeks.".
"It has been awaited through an entire literary generation.
Among Jews, it has been awaited for a good many centuries.
The ruling has been awaited by the diagnostic testing industry as a precedent.
NO EVENT has been awaited in Malta with greater eagerness than the start of Operation Nautilus II.
The Times' Beijing bureau chief, Philip P. Pan, has been awaiting credentials since March.
For 20 years Vanessa has been awaiting the return of Anatol, the lover who jilted her.
He was charged with possessing weapons and has been awaiting trial since.
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Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union