The duo will appear in issue #5 of The Archies which is a spinoff comic about Archie’s band, and will be available February 2018. There’s a couple of different covers for the Tegan and Sara issue, including one where Tegan wears a Betty T-shirt and Sara wears a Veronica shirt! (Now we know their types!)
Not to dismiss Tegan and Sarah but why does Veronica look like she is training to become a jedi? Just saying…