As hotel owners become increasingly optimistic—and profitable—a brighter future is driving new investments and innovation, say industry insiders, who are forecasting improvement in several key metrics for 2013.

Bjorn Hanson, divisional dean of the New York University Tisch Center for Hospitality, told CNBC that the all important RevPAR metric (revenue per available room) will reach pre-recession levels this year. Overall, RevPAR will grow about 6 percent, he said.