Eldar Murtazin is a highly respected man in the Symbian world, he always lands devices before almost everyone else and regularly sees phones still within their early proto stages. Yesterday, on the mobile review forums, he hinted at many things coming from Nokia.
In response to Awesome_Alek's question of whether he had seen the supposed 16GB N81 successor due out at the end of the year, Eldar replied "not right it will be N95 8 Gb replacement - but not the end of the year, think it will out around April".
An N95 8GB replacement in April 2009? That's too far away! Maybe something half decent will actually come out this year...
Check out all the other ramblings from Eldar throughout this page in the Nokia announcements threads, there's other little hints.... Including Kastor UI!