I wouldn't rush into buying a replacement , instead leaving til the summer to find a permanent replacement.
In the meantime , we could take a loan player or two (Lambert is shot and Vic is nearly always poor). Problem, can't think of anyone immediately who could step straight in so probably an overseas player or two?
The eternal optimist in me believes we have a few lined up to complete quickly in the event he definitely goes ( which I expect). The realist in me and history has shown me that we'll panic and take someone undershelming and try to grind our way through the rest of the season - again zzzzzZZZZZZZZ