Some sources are saying that Inoue Kikuko will release a life-size 
poster for sale.  Details can be found in the coming issue (June) 
of Seiyuu Grand Prix.
Ref: http://homepage1.nifty.com/manabu_wada/

However, there is no such info on her offical site @manbow.

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'CuSO4' Yung
cuso4@cuso4.com, cuso4@manbow.com, chyung@hknet.com, cuso4@cuso4.org