The folks behind “Riverdance” have a new thundering Irish dance show poised to tour North America, but don’t dare call it “Riverdance II.” “Heartbeat of Home” integrates the Emerald Isle’s signature high-stepping with the tango, the flamenco, Cuban salsa and even hip-hop, reflecting the growing multiculturalism of Ireland since “Riverdance” debuted two decades ago. “We … More Creators Of ‘Riverdance’ Plan To Tour New Show