DC has posted the official preview pages for Flash #66, and you can read them at CBR. They show a somewhat revamped childhood origin story for longtime Flash foe/ally James Jesse, also known as the Trickster, and the issue is centred on him.

THE FLASH #66
written by JOSHUA WILLIAMSON
art by SCOTT KOLINS
cover by RAFA SANDOVAL and JORDI TARRAGONA
variant cover by TIM SALE
James Jesse, the original Trickster and new crime lord of Central City, is taking over—and his plans for the city are his most diabolical ever. But how was he able to claim his throne, and where has he been for all these years? Learn all the answers in this issue that details each dastardly trick he’s pulled to get to the top!
ON SALE 03.13.19
$3.99 US | 32 PAGES
FC | RATED T
This issue will ship with two covers.