Is Insomniac teasing something Sunset Overdrive related?

Just days before the PlayStation Showcase, the developer posts an image of Sunset Overdrive on Twitter.

Sunset Overdrive Finally Hits The PC Platform This Week - Gameranx

How Insomniac's Sunset Overdrive mixes gunplay with rail-grinds

Insomniac Games Teases Sunset Overdrive Live Action Trailer - Hardcore Gamer

Sony Just Registered the Sunset Overdrive Trademark - Xfire

Sunset Overdrive - Game Overview

Insomniac Games - Always Outnumbered. Never Outfunned. Sunset Overdrive + Ratchet and Clank = <3 (via KBAPK on DeviantArt)

Sunset Overdrive is available on PC today – Destructoid

Sunset Overdrive Review - Insomniac Games Is Home From War - Game Informer

Sunset Overdrive review