The Peraturan Pemerintah RI tentang jenis dan tarif atas jenis penerimaan negara bukan pajak yg berlaku pada depkumham (this is the official name of the relevant regulation) was due to be passed in 2017. By law, administrative fees levied by all ministries should be revised at the maximum three years after their first enactment. Considering that the present set of fees have been enacted in May 2014, the government was already late passing the new regulation.
The latest governmental regulation I have has been passed mid November (PP 47/2017) and concerns PT Indonesia Asahan Aluminium. If the new regulations concerning Non Tax State Revenues levied by the Ministry of Justice and Human Right has been passed it is after November 15th and I don't have yet any confirmation or official document.
What is certain is that the overstay fee will be drastically increased, which imho is certainly legitimate. It has been discussed by pejabat for the past two years now. As it stands it doesn't act as a deterrent and an overstay is an offense taken far too lightly by foreigners. I guess that back home overstaying a visa is not seen kindly. Same here.
Also, one has too remember that the amount of PNBP levied by the Ministery of Justice and Human Rights have drastically decreased since 2015 (more than Rp 1,4 trillions being amputed from the Ministery yearly budget) with the full implementation of the visa free program. A revision of the fees was urgent and I am afraid that a few categories among us will be asked to contribute more to help compensate this.
I have always been amazed at how gullible we (the Expat population) are. There are still people out there who believe in the "free KITAP" and other chimere.
If there are any board with the logo of Depkumham on it who advertise a Rp 1.000.000 fee for overstay it means that the PP has been passed already (therefore after November 15th) and is effective.