I think PK 18m as well as PK 17, will last on. Maybe the Power Grooves get a stronger coverstock for more oil, but the PK 18 has, with aggressive and particle variations on the Fuze balls, been around for a while and it is still a versatile option. Why getting rid of it? Yes, and there are the overseas PK versions for dry and oily conditions.
I agree that Activator will not trickle into the BVP series. It is 1st generation state-of-the-art stuff and will stay on the high performance ball for at least 1 ball generation, currently not lower than the Zone balls.
As far as I know both Monsters will be discontinued this year, as well as the original Inferno and the Raging Inferno. From both Time and Wrp Zone I haven't heard anything, but replacing the Time Zone with a polished PK 18 BVP ball (pearl or solid) would make sense, and the Warp Zone is rendered obsolete by the cheaper Goliath.
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DizzyFugu --- Reporting from Germany
"All that we see or seem, is but a dream within a dream..." - Edgar Allen Poe