Time line for adding payment outside Google Play store

Hi

I am a happy user of Locus Map Pro and would like to buy the gold version 4, but Google Play does not accept my payment because of the country in which I live (Curaçao, part of the former Netherlands Antilles). I have seen that you are planning (one time) payments on your website, so that Google Play is not needed anymore for payment.

Could you tell me what the status is of this plan and when this would be implemented? Till that time I have to keep Locus Map Pro; not really a problem, but I would like to switch to version 4 and in this way support the development of this great app.

Regards

John Dohmen