That would be unlikely. If OP is the exception, not the rule, of their hires, they aren't going to replace the whole team with people like OP. And if they are smart, they aren't going to fire a whole team and rely on one person. Especially one who might be showing signs of frustration being at the company (though, yes, there are many examples in which companies have done this).
Perhaps the team is downsized, but "the rest of the team" probably won't be outright fired.