I’m sure the majority of his estate is safe and sound in trusts.
It depends. If the assets in the pour over will weren’t in the trust before death, the estate goes through probate before the assets can be poured over. Do a search on whether pour over trusts escape probate.
Now, if this trust was a revocable living trust, the assets would escape probate if they had been titled to the living trust, even if it was a revocable trust.
But, maybe they handle this differently in the Virgin Islands than in the mainland USA.