In the early 1800's Japan and Russia were fighting over Sakhalin Island like England/France Fought over the Ohio Valley in the 1700's, It was Japans rising power in the 1890's that forced Russia to accept a Co dominion over the island.
A Japan that has a delayed Awaking will probably lose the whole island in the 1880's, and maybe the Kuriles as well. This will help pull Russia towards the East.
Russia has had a split between it's east and it's western faces, A Russia that moves into the East more aggressively in the 1890's, may have the Eastern Face win out.
Russia as a Asian Power, instead of a European Power.