It may be possible to transfer your pension to the UK depending on your current visa and on the conditions of the QROPS/ROPS. However in certain cases there may be a departing tax charge of 65% with effect from 1 July 2017.
Alternatively you can leave your Superannuation in Australia. However, this does not apply to Self Managed Superannuation Funds.
(Professional financial & tax advice is recommended when making this decision)