Rustic Dragon put together a comparison image for the most recent Hearth of Britannia Dragonsmeet, showcasing the similarities and differences between the Britannian runes (of Ultima fame) and the New Britannian runes (which will feature in Shroud of the Avatar):

Clickez vous to embiggen.

Not a lot of differences, are there? Apart from the complete lack of “double letter” runes, that is…