I like to think that Jesus would be digging water wells in Africa. He would be rebuilding Haiti and the coastal villages in Ecuador. He would be planting trees. He would be organizing a food bank and researching to find a cure for Zika. He would be caring for people suffering from Ebola. He would be assisting refugees and fighting oppression.
He would be encouraging us to be kind to one another. To look out for one another. To overlook differences and disagreements. He wouldn't care about the insignificant things, and by that I mean how you dress, or how many tattoos or piercings you have, what sex you are attracted to, what you drink, what music you listen to, or where you plant your butt on Sundays.
He might be any religion or no religion. His religion almost wouldn't matter. He would embody kindness in action.
He'd make a giant bonfire of all the t-shirts, bracelets, pins, bookmarks, stickers etc that have WWJD on them, causing a worldwide smoke cloud and accidentally launching a new ice age.