Supergirl and Flash crossover is missing one thing

To avoid the problem of Flash and Arrow not calling in some mega super-powered assistance when Zoom and Damien Darhk get really out of hand, Barry Allen is traveling to another Earth to lend a hand… and feet to Supergirl. 

Supergirl - Livewire and Silver Bansheesupergirl-the-flash-crossover-posterIn the Supergirl crossover entitled Worlds Finest set to air March 28, Flash travels to National City and aids Kara and Team Supergirl to battle Silver Banshee (Italia Ricci) and Livewire (Brit Morgan). And Flash’s universe crossing has him lost and desperate to find his way home.

I’m only disappointed we won’t be seeing the super tech geek out from a meeting of Cisco and Winn. That would be a colossal clash of the fanboys, but maybe next year Cisco can Vibe his way along and roll with Barry in the subsequent crossover?