This site is not for solicitation of services or 'purchasing' development. Please do not post requesting side mods/plugins and so on. Your thread will be removed, and you will receive a warning.
A petition won't do anything. TPC have been petitioned tons of time before from fans of other fan-made games and it has done nothing. It won't do anything this time either. You're better off not wasting your energy.
Just be glad you got five fun years out of it and enjoy playing the last version if you were lucky enough to have downloaded it in time.