Hello I am a solicitor with over 15 years experience and will try to help you with this.
So your husband is on police bail and has not yet been charged. This means he is a suspect but at present the police do not have enough evidence to charge him. When you say intent to kill do you mean threats to kill intending that the threat was believed? At this srtage there is not much that can be done, and you and your husband need to be patient.
The solicitor your husband has will be a duty solicitor. This is not someone appointed by the police. The duty scheme is run by the Legal Services Commission (formerly the Legal Aid Board) and involves a rota of solicitors in private practice. Solicitors have to get enough experience and pass tests to become duty solicitors, all good criminal solicitors are duty solicitors.
His solicitors should write to him and give him written advice about what has happened. He can also speak to them if he has any questions but, unless there is any specific evidence that can be gathered at this stage then really you need to just be patient.
"I will be round to end your stinking life you son of a bitch" sounds like a threat to me. The solicitors are right all you can do is wait. I tend to think that delay is good for Suspects/Defendants as the longer the case takes the more likely it is to go wrong. As for advice on sentence I can't really give you that as I don't have enough information, your solicitor will be able to although at this stage he won't be able to do more than a ball park type guess - especially as it is not clear what, if anything, he will be charged with.