Pearce was left disappointed as Team GB were eliminated on penalties by South Korea in the quarter-finals on Saturday at the Millennium Stadium.
He told BBC Sport: "The format of Team GB in the Olympics has been fantastic, but I don't think it will happen again.
"Where will we find the time to enter into a qualification tournament?"
Traditionally the European qualifiers for the Olympics are decided by performance in the European Under-21 Championship, a tournament that the home nations enter in individually.
Both Team GB's football teams were dumped out in the last eight, with Hope Powell's women defeated 2-0 by Canada in Coventry on Friday.