It was only Wednesday last week that German retail giant Metro Group announced its intention to split into two by mid-2017. Its Metro Cash & Carry and "real,-" hypermarket subsidiaries, representing around two-thirds of annual group revenues (€58bn) in 2014/15, are to be spun off in an independent unit which will seek a separate listing. Meanwhile, electronics retailer Media-Saturn will stay part of the Metro Group.The news of the demerger upped the share price by more than 12 per cent on the day, providing a welcome fillip for long-suffering shareholders. Since then analysts in the City of London have bombarded their clients with research papers containing likely scenarios for the future. Clearly the financial community are suckers for any kind of story – much as wide-eyed children are entranced by thimble riggers at a funfair.Perhaps, though, these highly-paid experts, who pride themselves on the sophistication of their valuation techniques, should take a more sober view of future prospects. However parent company Metro may repackage its progeny, the new entities will not suddenly become something totally different.