Dec 7 (Reuters) - Canadian Pacific Railway Ltd CP.TO :
* Expected to revise terms of its roughly $30 billion bid for rival Norfolk Southern Corp (N:NSC) as soon as Tuesday - WSJ
* Expected to offer $32.86 in cash and .451 of a share in new holding co until surface transportation board rules on merger- WSJ
* Source: (http://on.wsj.com/1NeIT3y)
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