Female
Probably the closest one on the list. Not going to happen this time, but maybe the next one.
Gay
20 years or so. Maybe sooner depending, but you'll likely need at least a generation turn.
Atheist
Not going to happen.
Muslim
Extremely unlikely to happen soon.
Asian
Mexican
Could happen at any time. I'm not sure how many Asians are actually active though in politics.
The others have been done already.
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Chrono1219