I wouldn't put it past him to just get a job first and talk about it later though.
As long as that sort of habitual, unilateral decision making happens when you are in your home country, you have a decent raft of choices when dealing with the ramifications of them.
Not so much when you are overseas.
I have known a lot of trapped women who were stuck, miserable where they were, rendered utterly powerless within their marriage, but naturally unwilling to go home without their child/children.
They were the luckier ones.
Others have been forced to leave without their kids when husband takes steps to deny them a visa and/or, the right to work, while refusing to pay spousal support.
Just how bad it can get depends on where you go. But anywhere you go (with somebody who has a habit of unilateral decision making and a tendency to overlook his partner's priorities) can be less A Fresh Start and more Same Shit Wherever We Go except now the power balance is tipped so heavily in his favour that I am pretty much fucked.
I have lived overseas for nearly three decades. I have a child I can't move back home with. Cos... over DH's cold dead body would he let me walz off back to Britain with him. Which is OK, cos DH and I have an equitable relationship and I want to live here, not back home.
But even I will sigh a deep sigh of relief in 2 years time when DS becomes an adult and I don't have hanging over me the knowledge that like it, or lump, I have to stay here if I want to be with my kid. That can be an arsehole of a concept to live with even when your husband's very considerate most of the time, he understands the things that matter to you and doesn't dismiss them as mere irritations to be swept aside post haste if they don't float his boat.
In your shoes, I'd think an awful lot harder about what going overseas could take away from you, rather than focusing on what it might offer.