Putin wont want the black boxes in Russia, it only would cause more problems than he has right now.
I predict
1 Black boxes will not been seen again
2 the Buk is back in Russia and will be buried/torched
3 the team who fired the missile will likewise be dead by now and buried
4 no trace of the missile will be found (specialist cleaner will have been on site with hours)
5 The US & Russia will have launch co-ordinates to within a metre
6 not a single person or group will ever face trail
7 MA will be bust within a month
8 further sanctions will be applied to Russia
9 Germany will continue to buy gas and ship Merc's
10 France will deliver the warships on order to Russia
11 Chelsea will still be owned by a Russian
12 Obama will draw another red line
13 Final report that it was likely that the T7 was destroyed by a SAM but who fired it remains uncertain in the absence of an individual or equipment
14 Pprune will move on to the next story..............