Semreh and A & C... Illuminating!
The most likely scenario is damage to the wiring and the reported fault conditions may not necessarily be relied on; at least as predicted. Still, it neither rules in or out terrorism.
Unless explosives can be confirmed from debris analysis (and perhaps even if it is), it leaves the distinct possibility that there is a potential weak spot in the related wiring harnesses or protection thereof.
If the FDR and CVR are recovered, they may not provide sufficient information to resolve precisely what that weakness is, or how the chain of events may have started.
Locating the wiring and equipment involved, and raising from 10k may be impossible. This will leave the investigators having to try to recreate the circumstances...
It is very worrying if a spilled drink could potentially bring down an airliner?!