It would be a great new feature if a more advanced Linker would also provide
options to link to 3rd Party modules as well as core pages. e.g. News / CGBlog
articles or Products, maybe even LISE instance items.

I was trying to convince a new editor to use the Internal Linker rather than
just linking to a fixed url, when they asked why News articles were not showing
as options. I think it's a good point from a user point of view and a nice
solution would make it an even better feature.

Let me know if you might consider this or not. I'll add it to my personal
development wishlist also. :)