Really think there will ever be a real accident investigation to amount to anything in this case? I don't.
Depends on who does the investigating really. History tells us that carefully tailored investigations can give you the results you want. In this case a Malaysian Airlines American made plane crashing on Ukrainian soil almost guarantees that none of the previous nationalities will be involved in the investigation. Which guarantees it happening again and again. Previous shoot downs of civilian aircraft.
Here is the evidence
1940s
Kaleva OH-ALL
KNILM PK-AFV
BOAC Flight 777
1950s
Cathay Pacific VR-HEU
El Al Flight 402
1970s
Libyan Arab Airlines Flight 114
Korean Air Lines Flight 902
Air Rhodesia Flight RH825
Air Rhodesia Flight RH827
1980s
Aerolinee Itavia Flight 870
Korean Air Lines Flight 007
Polar 3
Air Malawi 7Q-YMB
Iran Air Flight 655
T&G Aviation DC-7
1990s
September 1993 Transair Georgian Airline Shootdowns
Lionair Flight LN 602
2000s
2001 Siberia Airlines Flight 1812
2003 Baghdad DHL attempted shootdown incident
2007 Balad aircraft crash
2007 Mogadishu TransAVIAexport Airlines Il-76 crash
2010s
2014 Malaysian Airlines Flight 17