The developer is already paid for the new version 7.3 work in full so A-EON is in the "red" on this project at the moment. If 468 copies are sold in total then the project will break even. Anything over this and a surplus will be made.
However, A-EON intends to invest more money into further updates very shortly
Keep suggestions coming for future features that you would like to see on the new PPaint.