Warner Bros has a leg up because they already own about 20% of Eidos' shares and there are no longer any restrictions on Warner Bros buying a controlling interest in the struggling company, which owns the rights to franchises such as Tomb Raider and Hitman.
However, Square Enix has recently revealed interest in Eidos after their president, Yoichi Wada, visited Denmark's IO Studios, which is famous for the Hitman series. Square Enix's interest is a little surprising but, after this year's Tokyo Game Show keynote where Wada decried Japanese developers for letting Western developers take their thunder, the company seems to be trying to reach out to other territories and properties.
While Warner Bros will most likely buy out Eidos, Square Enix might buy specific properties, like the Hitman franchise, or studios.
lara croft fantasy?
Well, SE ownership has worked out surprisingly well for Taito so far, so I have to say I'm interested in what their influence could do for Eidos. Besides, WB doesn't exactly have a glowing history in the video game industry.
Who knows what SE is thinking here? =\
