Asked whether Rahul will be able to steer the party if made president, Dikshit said it was too early to comment.
"It's a question of the future. How he does, what he does... When you get full responsibility, you may come out with a different colour," said Dikshit.
On opposition's criticism of Rahul over his nearly two-month-long sabbatical, Dikshit said it was a "non-issue."
"I do not give too much importance to it. Mrs Gandhi is the president and, in the last three or four weeks or so, she has once again shown her mettle.....Her concern for things that matter to India like (protecting) the interest of the farmers and price rise."
Expressing confidence about Congress' revival, the former Delhi Chief Minister cited examples of Indira Gandhi and Rajiv Gandhi, who led the party back to power after electoral debacles.
"I have no doubt that it will revive. We have time on our side now. We have four years comfortably and the Congress will introspect. It is in the process of doing so. It will do more. This is not for the first time in the country that the intellectuals felt that Congress is over.
"Don't think that if you lose an election once, you lost it forever or if you won an election, you won it forever. So, there are these moments that happen and it's part of history and part of democracy," she said.
Dikshit suggested revamping the AICC and called for young leaders like Jyotiraditya Scindia and Jitin Prasada being given more prominent roles.
"I think that the AICC needs to be revamped and a new impetus given to its structure. For instance, some people have been there for decades and decades. We need to bring new blood. We should bring them in and train for the future," she said.
Dikshit said the party should bring "change" which will be "refreshing". "We do need to have change in our thoughts and bring fresh blood. The fire in the belly has to come," she said.
Asked about the demand by a section in the Congress to give Priyanka Gandhi a prominent role, Dikshit said it can be decided by the party leadership and the Gandhi family.
"This is something which has to be done very carefully and Mrs Gandhi is known to be a person who treads very carefully and in a very sophisticated and careful way, (she) measures everything. I have the fullest faith in her. Whatever she does, the party will follow," she said.
The former Delhi Chief Minister said she was ready to play any role in the party but insisted she was not seeking any position.