If watching the relatively recent Bastion animated short got you interested in the Crusaders and Reinhardt's history in general, you'll be glad to hear that Eichenwalde, Overwatch's first post-launch map, is now available on the PTR (Public Test Realm).
Much like King's Row and Numbani, Eichenwalde is a hybrid map that features elements from both payload and assault maps, all wrapped up in some of the loveliest scenery Overwatch has seen to date. If you don't believe me, here's the trailer that showcases the various locations on the map, and more importantly, one of the amazing new skins for Reinhardt:
While its somewhat unrelated to the map itself, the two new Reinhardt skins will be purchasable with in-game currency, unlike the currently ongoing Summer Games Loot Boxes which are a pile of randomness stacked upon an even bigger pile of randomness. Naturally, the same applies to all of the new emotes and animations coming with Season 2 as well.
Speaking of which, if you would like to learn more about Season 2 and what sort of balance changes lie in Overwatch's future, I would suggest you head over here. However, given that this is all currently on the test servers I wouldn't get too attached to any of the proposed changes as they might be adjusted or outright removed by the time Season 2 launches, but even so its still exciting to speculate on which heroes will be entering and leaving the meta.