I thought I'd have a play with a remixed flag.
In fact this wouldn't happen as the Union Jack signifies a union of crowns and not governments, the only way it would be redrawn would be if Scotland becomes a republic. However it does look quite sleek, though it's a shame to lose the St Andrew blue.
As an addendum, I remember seeing a piece years ago in the Big Issue where artists redrew the flag of Britain. I remember Damien Hirst chose to put egg and chips on the flag. Now that's a flag I would fight under.