It's not too late to sign up
Looking for another MOBA isn't something I'm all that interested right now, but props to Turbine for crafting a premise that will at least get me to try its DC Multiverse-infused spin on the genre. Should you similarly want to check out Infinite Crisis, know that the closed beta is starting up on May 8, 2013. While it's hard to say where this game will fit in, I hope it can carve a niche for itself.
Consider this a nudge to express your interest by signing up for the beta. And, while you're there, take a look at the website -- it's got character profiles and some rather neat wallpapers.
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Here's a recent video of Infinite Crisis featuring Gaslight Batman: