BOSTON, April 15 (Reuters) - The president of the Massachusetts state senate said lawmakers will debate in the autumn a bill allowing casinos in Massachusetts, reviving legislation that could deliver much-needed revenue.

Massachusetts Governor Deval Patrick has long advocated expanding gaming but a bill was blocked by the former speaker of the state House of Representatives, Salvatore DiMasi, whose replacement, Robert DeLeo, supports casino gambling.

"The speaker, myself and the governor have all discussed gaming. We are all in belief that we will do a gaming bill and there will be a gaming bill out probably in the fall," said state Senate president Therese Murray.

"To see that over $900 million leaves the Commonwealth (of Massachusetts) every year and goes to Connecticut and Rhode Island for gaming, I think that even if we pick up $700 million of that we would all take that," she told a Greater Boston Chamber of Commerce breakfast on Wednesday.

Patrick has said casinos would generate billions of dollars of construction-related spending and tens of thousands of construction and other jobs, along with $400 million in revenue annually net of expected public safety and health costs.

Murray said the state Senate would have passed a casino bill last year if the House had not blocked it.

(Reporting by Kevin McNicholas. Writing by Jason Szep, Editing by Chizu Nomiyama)