Highly unlikely.
TTAL is bigger than any solo Beyonce era ever. And Britney hasn't seen major album success since what, 2004 when her greatest hits came out?
Britney's singles from her recent eras might have been doing well, but her album sales are slacking and are going down the drain. Beyoncé proved she is an album seller with 4. Therefore I think Bey has more chance than Britney.