"We're certainly very excited about this single-way, one-versus-one safe minigame"
^ This was announced in the "state of play" ^
Right now, the ONLY way to transfer items from one account to another is BH.
So, the ONLY way to completly stop RWT is to remove BH - the ONLY dangerous minigame, in which you receive your opponents items.
Recently, the number of BH words was reduced to only 3(way too little

), and the new pvp minigame is going to come out soon, and since it is "safe", you cannot transfer items between accounts.
So, do you think BH will be removed and replaced with this new pvp minigame?
Jagex had the guts to remove wildy pvp, they might have the guts to remove dangerous pvp commpletly...
To me, a dedicated PKer, this would be the final push out of RS...