Perhaps only a temporary measure; it could well be that services will have to be cut back to some extent due to budget restraints: https://www.northwarks.gov.uk/news/article/159/arley_sports_centre_to_stay_open_pending_leisure_review

I would guess that this is only a stay of execution whilst they gather more information about just how much the facilities are used.

Yes, I have the feeling it's only a matter of time before it closes. It will be a shame, but if it's not viable it will have to close.