Originally Posted by
Caitsidhe
The only point of the shake ups is to stimulate sales, by invalidating what was good and trying to create a rush to buy something new. This is now combined with breaking a Codex into 2-4 books (perhaps more as the year goes on). Their new tactic is to trying and get people to buy multiple armies as well. So yes, whatever was hot will be useless or neutral compared to something else.
*The truly ironic thing is that if they truly built interesting, BALANCED armies where everything had a niche, sales would stay pretty level and continuous across the product line. Releasing books with units that are entirely pointless all but ensures models are issued which won't sell at the time of issue.