It's a shame they don't have time for a revamp. This could combine the bless-ness it already has thanks to the way she sings the lyrics with a really powerful backing. See also for this technique Malta's tres iconique "Warrior." As it stands though, it's a bit limp. Her voice is fairly charming, but I think it could use quite a bit more power. A VERY kind 6.
It might be
slightly late for a revamp, but I don't think it's impossible, is it? We've had a bunch of songs in recent years that were released later than this and ended up getting revamps - see X My Heart (revealed on March 4), Verona (also chosen on March 4), This Is Love (March 6) and even the iconic I Didn't Know (March 9, getting revamped into a different genre altogether).
I could be misunderstanding things but I think the EBU submission deadline is just to lock in the artist + song name, lyrics and general melody, or something like that; tweaks to the instrumentation can come for a while after, and sometimes those sorts of revamps aren't even revealed until mid-April. So we can hope.