Is 'The Atom' coming to ARROW soon?

Brandon just tweeted this photo of his face getting plastered on the ARROW set. The big question is... are we going to see him suited up as DC Comics hero "The Atom" soon?

All in a day’s work… #RayPalmer #Arrow @CW_Arrow pic.twitter.com/w4yFNxOn2g

— Brandon Routh (@BrandonJRouth) November 4, 2014