Remember that at one point, "computer science" was considered a subfield of "electrical engineering", and both of them have their roots in Claude Shannon's masters thesis. That's because after he published his result and it became widely known, thousands of others piled into those fields to study the consequences of digital circuits. Similarly, I'd bet that in a hundred years "computer science" isn't one field, it's at least half a dozen, and people will be studying the subfields of version control, distributed systems, CRDTs, neural nets, computer graphics, data storage, compression, information retrieval, and others. Actually, that isn't a hundred years, that's today.
I'm curious, who would those be?