The iPlayer IS being implemented and will be launched in the UK in a couple of months. However I don't think the BBC will push for removal of torrents until the the international version is launched.
The international version will give you the chance to pay for the shows instead of getting them for free - putting something back into the BBC and giving something to the people that made the show.
I hope you are right. I have no problems paying BBC to watch TG. Its fair.