Russia at one time were a superpower, That all died with the downfall of the USSR.
Germany was a superpower under the rule of Adolf Hitler, Mainly due to the conquests, And the vast natural resources that the conquered lands had provided.
Japan was also a superpower during the dynasty era, With the aid of the Mongols and such.
India never was, And never will be a superpower, They simply don't have the money and firepower to be considered a superpower, Perhaps a religous superpower, But never a military or economical superpower.
France perhaps has the ability to become a superpower within the next 50years, But I believe major reform of the government and policies will need to take place for any REAL superpowerism to come to France.
Britain are in essence a joke. They never will be a superpower with the line of monarchy they have. They also need more natural resources and a more extensive military, At one time in history they had the best Navy in the world, Now it's dimminished significantly, With the overthrow of the monarchy and a new ruler at the head of the British people, I believe acheiving superpower will be extremely hard, But not impossible.