This months C+ has an advert that suggests Dawes are entering the fray with a kids road bike. There is another advertsied in the mag from one of the bike shops, might be Pearsons, but getting on for £400 IIRC.
The
Decathlon one is no longer imported, I've not been to a Decathlon in France to see if they still have them, but for VFM they are pretty good. 600c wheels, steel frame, decent brakes, my 9 year old has one and really likes it, but was struggling with the handlebar shape and braking, I showed him a flat-bar Boardman, and he was happy then to go for a flat bar conversion, using some V brake levers, cheap Shimano Tourney thumbies and some Ritchey bar ends from my tool box.
But there is no way that is getting sold at the moment! Maybe in a year or two, but not now, he fits it, likes it, uses it regularly.
You might get one on
Ebay, but last year after Decathlon stopped them the prices got very, very, silly. Things may have cooled down a bit now, but there would still be a supply & demand issue if people are still keen to own them.