Predictions can be dangerous, of course, but I will be delighted if the wreck is found at Niku and will applaud TIGHAR's success if so.
No matter how you cut it, this has and always will be an 'odds' game - and the 'odds' of the Electra turning up where TIGHAR's theory suggests by other means than TIGHAR has suggested would be wildly beyond belief, IMO. I for one would certainly take it as 'Niku arrival' proof - too much co-inky-dink otherwise.
That said, she remains to be found, somewhere.