Yes Rahul Gandhi is going to play longer innings in Indian politics.
Congress is very old party. Donot know who really started and what for but the name brand "Congress" sells. Gandhi name is also very popular, Indians get confused with this name so that brand too sells.
Pass or Fail some of the Congress members get reserved places to stand for elections like Ameti or Rai Barely. So sure he is going to play a long innings.
Indian politics is reserved for Congress. Any other party whichever will come and go, but congress is going to play a long innings, because Congress brand sells. In urban area and in rural area.