Ward is the current World No.320 and he will join Dan Evans, Cameron Norrie, Jamie Murray and Joe Salisbury in the team. He has experience having won the 2015 Davis Cup title and was once British Number 2.
Despite that though with the news of Murray's late withdrawal, it has dented their hopes of a big run. Especially after Tim Henman himself had previously spoke about how glad he was to see the team he had assembled.
In terms of other players, they did not make themselves available. This will likely include Kyle Edmund who is in the country with him attempting to qualify for the Adelaide International but it will be Ward who will be involved instead.
https://twitter.com/Mike_Dickson_DM/status/1211584412359499776?s=20