As is everyone else, I am looking forward to the playtesting so that we can see just how customizable Krilowatt is and how well it fits the concept. I doubt it will be as customizable as the concept originally said it would be. One of its abilities, Magic Guard, is almost always better than Trace, since an immunity to all passive damage gives Krilowatt an easier time against a wide variety of Pokemon and almost any stall team, whereas Trace only makes Krilowatt better equipped to face a handful of Pokemon. Magic Guard will also probably lead to some stallbreaker sets, since Krilowatt is immune to most stall teams' attacks and can take out much of a stall team as long as it gets Pursuit support. The combination of coverage and base power that Krilowatt gets from its Special movepool gives Krilowatt few reasons to run physical sets, or any moveset not including Surf, Ice Beam, and Thunderbolt. The area of the greatest customization of Krilowatt will likely be the nature and EV spread, through which the Krilowatt user has to decide whether to better handle Physical or Special Pokemon, and what is important to outspeed. But since Blissey already lets players defeat almost all Special sweepers, Krilowatt will most often be customized to take on Physical threats. So Krilowatt will likely fail to be the highly customized counter the concept described.
But even if Krilowatt fails, CAP10 will still have succeeded. The whole purpose is to promote discussion of how to fulfill the concept and thoroughly debate the effects certain choices will have on the concept. In this respect, CAP10 has been a huge success in that it has sparked the discussion of a wide variety of attributes of a utility counter.