It seems some representatives of the town of Nasu, where the stone is, suggest it should be put back whole [1].
> 「自然現象の可能性が高いので致し方ない。可能であれば元の形に近い状態に戻すことが理想ではないか」
Rough translation: It's likely this was a natural phenomenon, it can't be help. If possible, I think it would be ideal to put it back to its original shape.