For starters, it won't have the same range, it'll have a range of two. I'm also not commenting on what it should be, just that, unless they change the Longbowmen, its ability of +1 range will continue with future units.
For those who want to know. Any unit with a promotion gets to keep it. Things where it's just a stronger unit (example, Hoplite) don't get to keep it. But benefits transfer.
Well then I am playing as England.