What's the final consensus on this tumbling boi?

Last I heard...
>It was either long and cigar shaped or exceptionally flat
>Luminosity changed as if tumbling very rapidly
>Initial velocity must have been unusually high
>No outgassing was detected
>Accelerated as it was leaving the Sun, which should have been impossible unless it was a comet, or artificial in nature, or pushed by the solar plasma (in which case the cigar shape seems more unlikely)

So what was it?
A shard from some planet sent tumbling about when the planet got wrecked?
A comet with a very faint outgassing undetectable by us?
Another kind of star debris?
An ayyylmao probe?

What's the final consensus?