They still have their place as there's little substitute for 50 aircraft brought to theatre. With increasing missile and sub effectiveness they may need to be k

They still have their place as there's little substitute for 50 aircraft brought to theatre. With increasing missile and sub effectiveness they may need to be kept back until the latter stages of a war, or used judiciously with an equivalent opponent. But that's been a discussion around capital ships that's come and gone ever since HMS Dreadnought brought in the very idea of a capital ship, and continued through WW2.