How many years do you think until data science, analysis, and engineering(MLE, etc.) roles split into domain specific roles?

Data science already requires a ton of domain knowledge to go beyond a junior level in the current job market(and descriptions!), but when do you think it will no longer be commonplace to see a job for “data scientist” or “data engineer” with common requirements +preferred experience and see more jobs like “content delivery algorithm scientist” , “medical support optimization analyst” or a “Salesforce data pipelining engineer”? I know that we do already see roles like this, just wondering what …

analysis beyond current data data science datascience data scientist domain domain knowledge engineering etc job job market junior knowledge mle roles science think will