That's what people are saying.. I personally doubt it. It will be a delayed ban almost surely which is just a ban of people they already knew were botting. As far as new detection methods I don't think there will be. Because as a reflection bot does not hook into the RS client or do anything with the client at all it is nearly impossible to detect through any sort of software application.
Unless they come out with like a PunkBuster style anti hacking tool that you must download to your PC and install. As far as new detection methods secretly in effect I think it is highly unlikely. They said they updated there macro detection software several times and it was always Bullshit. Runescape has even admitted they can't solve the botting problem, that's why they always update randoms to break bots and ETC. Because that is really the only way they can "detect" bots.
If Jagex couldn't find a solution to reflection bots as of yet with their hundreds of millions of dollars I don't see a solution coming anytime soon. Even then it will quickly be countered by the programmers of the bots and the client anyways.
Most likely Jagex is just fear mongering as always. Time will tell.
Another reason I don't believe they will stop botting completely is because a VAST amount of paying members bot. Plain and simple... they would lose a TON of revenue if they were able to completely detect botting. So not likely.
Again the only way I can see them actually being able to physically detect botting. Not just figure it out through failed randoms and reports is through some type of software that scans your PC. Which you will have to consent to being installed due to privacy issues. So unless they make a big announcement stating they are going to release some type of anti bot software I am pretty sure things will stay the same. As long as reflection bots don't hook the client at all there is really know way to detect them. Also because they are higher on the stack in Java programming so Runescape cannot reflect onto the bot only the bot can reflect onto RS.