Pardon me if you already saw this article re Assange published Sept. 14, 2019. I don't recall seeing it (or have forgotten) and ....well....1.) the British do things differently, don't they? and 2.) perhaps the Queen is "not amused.

I don't know that Assange would survive outside the prison if he had to remain in the UK without substantial security.

Assange to remain in jail pending extradition to US

PA Media
Sat 14 Sep 2019 05.18 EDT
Last modified on Sat 14 Sep 2019 06.22 EDT

Julian Assange will stay in prison after the custody period on his current jail term ends because of his “history of absconding”.

As home secretary, Sajid Javid signed an order in June allowing Assange’s extradition to the US over hacking allegations. A 50-week jail term was imposed in the UK after he had jumped previous bail by going into hiding in the Ecuadorian embassy in London.

The WikiLeaks founder would have been released from HMP Belmarsh on 22 September, Westminster magistrates court heard on Friday, but he was told he would be kept in jail because of “substantial grounds” for believing he would abscond again ...

Another administrative hearing will take place on 11 October and a case management hearing on 21 October, the court heard. The final extradition hearing is expected in February ...

https://www.theguardian.com/media/2019/sep/14/julian-assange-to-remain-in-jail-pending-extradition-to-us