A few weeks ago, I was struck by a line in Abraham Kuyper's "Lectures on Calvinism" (1898), one of the great (and accessible!) modern Protestant works on politics and law. In a world without sin, Kuyper wrote, "every rule and ordinance and law would drop away, even as all control and assertion of the power of the magistrate would disappear." Heaven, he suggests, is no place for law or lawyers.
We lawyers come in for a lot of abuse, much of it justified, but I'm not so sure our work will disappear in heaven. The conclusion that law and thus lawyers will be unnecessary seems to assume that in heaven we will be all seeing and all knowing, and all complexity will simply disappear. I'm not sure where that assumption comes from; it doesn't seem especially consistent with the hints of heaven, with all its richness and diversity, that we get in the Bible. The absence of sin doesn't necessarily mean the absence of complexity, and where there is complexity law and lawyers seem to have a role to play.
I don't think it's entirely coincidental that the Holy Spirit is described in the Bible as an advocate and a counselor, both distinctively lawyerly roles. The lawyers in heaven will be much better lawyers, but I suspect they will still be dispensing legal advice.
I'd be curious as to whether others agree.