I do not think they will disappear any time soon but I believe you need less people per case. So maybe there will be more cases and thus still the same amount or more lawyers required but one lawyer being able to do more cases assisted by some form of AI. And yes, most complete jobs can not (yet) be taken over but let's not forget the financials; if you can replace someone costing $40k per year by a less efficient service costing $10/mo then people will do it even if it does not fully replace the person. There are a lot of factors in that but for instance my accountant fired most of his staff when the SAAS package he uses got efficient enough; his right hand and him have to work slightly harder but he saves a very significant amount of money.