Compared to other accidents there is a lot of silence currently.
Generally, early information releases during crash investigations are either to:
a) indicate that the initial findings are that there is not an unsafe condition that could affect other aircraft or
b) there is a potential unsafe condition and they recommend steps to alleviate the safety concerns (inspections, etc.)
In this case, there is pretty universal agreement that the airplane was shot down. So there isn't much justification for early information release simply to alleviate potential safety concerns.