If something running without any host machine would be something you're interested in, I'll look into modifying the design.  It means it's going to probably cost a little more (not tons, but some).  It also means I'll switch over the MCU I'm using to something more effective for the job.
As far as an LCD, that's doable, as long as you understand that it's going to make it cost more.  Same with, say, WiFi compatibility.  Add about $20 per "feature" like this to the price of the unit (main board, that is).