I was also initially UC for Ukraine departing in July. When the bad news came in March, I immediately reapplied and was placed UC for Albania. Last week, after speaking with the placement officer for Ukraine, I got the impression that departure would be this October. When I got the e-mail notifying me of my change in status from UC Albania to UC Ukraine, however, it said that departure would be 2016.
Balkandina, did your e-mail also say UC Q1 Ukraine? The Ukraine office is out on staff training this week, so I'm not expecting to hear from them, but it would be comforting to know if other people are experiencing similar anxieties to mine