I saw some people posting earlier regarding 
Hogan Lovells--if you applied for a training contract direct the latest you will hear back by is mid-March. I am unsure about vacation schemes (sorry!). But I had applied for a summer vacation scheme before I switched to a direct TC and I didn't have any contact even after the big PFO morning they had. So I think those who still haven't heard back - have some faith you will hear back soon!