As I said earlier on in this thread - I still have that nagging feeling that this is a pump (the market with rumours) and dump (excess shares to hopefuls) by the MMs. For the sake of the smaller investors I hope these rumours end up as fact.
In terms of the membership renewals numbers: I think you will find people are cutting their spending across the board these days (especially city folk with lower bonuses ... or those without a job anymore), even large organisations are probably cutting back on gym subsidees. Then there is also the prospect that the congestion charge may indirectly cool off demand for gyms in the inner london areas.