If history has taught us anything, it's that there's at least a limited-time market for inferior GUI alternatives to nearly anything you can easily do from a command-line. Though to be fair, there's plenty of room for value-add over curl for web requests in terms of presentation where GUIs can work well: asset viewers, syntax highlighting, pretty printing, code folding, etc., especially if combined with interactive tools for decoding and deobfuscation that feed back into the viewer.

The obvious AI integration is reverse engineering tools, assuming the trend towards locking such things down doesn't continue.

And honestly, I worry less about people paying $29 for a GUI file renaming tool than I do about the same people copy/pasting LLM-generated shell snippets, given that LLMs will inevitably have trained on the existing corpus of shell scripts, many if not most of which contain potentially dangerous bugs, especially when used outside their intended context of known-trustworthy input.