That's why I have high hopes for (something like) the Frame.work; it should be possible to just get another keyboard 'part' which actually does have a trackpoint (and even no trackpad but other stuff theoretically). Someone, either Frame.work themselves or someone else needs to make it, but at least it's possible.

Edit: I would pay for such a keyboard for the Frame.work; it would actually very much stimulate me to buy one! I really hope to see crowdfunding from people who just make a Frame.work part.