Further assessment following successful ESA appeal

Hi Rightsnet users

I have a quick question!  We had an ESA appeal in Dec 2010 which was allowed because the DWP had not responded to directions and the decision was set aside.  The appeal was over in 5 mins as it turned out to be purely procedural (we were expecting it to be the usual LCW appeal).  The DWP have now received the appeal decision and have told us that the claimant has to undergo a futher assessment to decide which group she should be placed in. 

My questions is - will this assessment be yet another medical that she could fail or will it just be an interview with a personal adviser at JCP?

Many thanks
Jo