With Olympic glory behind them, New England’s gold medalists can expect to cash in on their athletic successes in London, but the financial prospects between them will differ considerably.

Gymnast Aly Raisman, the 18-year-old from Needham who won individual gold for her floor routine and gold for the team event, probably has “the most potential” of local Olympians to earn big money with endorsement deals, said Robert Tuchman, president of New York-based sports marketing firm Skylight Entertainment.