We can still hope that Hillary will make a really dumb pick for VP, like a woman or a minority or someone who brings youth to the ticket.
But Virginia senator Tim Kaine is favored as the most likely pick. Kaine is a 58-year-old white man with gray hair and a JD from Harvard, so on the surface he appears to have the gravitas necessary in a vice president (although he has a slightly goofy look which may cut into his perceived gravitas). He will also help Hillary carry the important swing state of Virginia.
There’s no doubt that Kaine has a higher IQ than Pence, so this election continues a new and unfortunate tradition of Republicans being less intelligent than the Democrats they run against.