I recommend waiting at least two years to jump in. I have little faith that FFG will actually support this game beyond a season or two. Diskwars anyone? Except the difference is that Diskwars was $30, this is $100 for half a set.
If you mean Warhammer Diskwars, they cancelled support of it when their license with GW was in question. They knew it was on shaky ground well before their announcement, because development of a game like this is not something you roll out at the drop of a hat. Given that they are no longer doing -any- GW products, this is a null point.