"ADAPTIV" is apaprently the newest gadget of BAe Systems; hexagonal tiles that control the infrared emission of an outer surface (=tiles become warmer or cooler, as far as I understand these physics).
There's so much media echo to it that I've seen it even in a national German newspaper (German newspaper authors are usually no miltech fanbois).
What strikes me is - except the practicability (dirt, reliability, perspective, temperature management, thickness, robustness, compatibility with daylight camo paints, saltwater resistance for naval applications) and cost questions (likely restricting this to recce and point vehicles) - that so far I didn't see one implication in any comment on it:
A system that changes the infrared signature of a (almost) whole vehicle that fast (assuming the video is not accelerated) would break the lock-on of infrared-guided fire and forget missiles such as the still relatively new and modern Javelin and (Euro)Spike.
Even the fibre-optic command control mode of (Euro)Spike would largely be countered.
In other words; you wouldn't need to deploy a multispectral smoke screen between yourself and the approaching missile to break its lock-on anymore.
What's more: Infrared guidance lock-ons could be prevented by near-continuous changing of the surface's signature like Rorschach's balaklava. This might affect even automatic tracking systems such as in (IIRC) the MBT Leclerq's gunner sight.
P.S.: "adaptiv" without the -e" happens to be the German translation of "adaptive"...I guess the Brits at BAe didn't consider this in time..