By Leika Kihara and Takahiko Wada TOKYO (Reuters) -The Bank of Japan is likely to revise up its economic and inflation forecasts in its next quarterly review, which could pave the way for an interest rate hike in October, the central bank's former board member Seiji Adachi told Reuters. Markets see a roughly 50% chance of a rate hike at the BOJ's next policy meeting on October 29-30, when the board will also release fresh quarterly growth and inflation forecasts. BOJ Governor Kazuo Ueda has stressed t ...