Just a few, make the tip a little pointer ( I guess leaning more to a wharnecliff style), a blade stop that prevents the very tip ( edge from contacting the backspacer), swedge towards the tip would be cool (think Crossbill) but not as extreme, and lose the holes in the handle.
A G10 version would probably appeal to a wider audience, but me personally if it has to be G10 I would prefer texture that is cut in to the G10 rather than peel ply. All my favorite G10 handled knives that have peel ply scales have been worn so that the texture it provided has now gone mostly.
I have a few knives that I have put Allen Putnam scales on that have the texture cut in to them, and They seem to be holding up better. Maybe some simple angled cuts would do the trick.
The Pelican is my favorite Byrd model, just would like to see a updated version.