War Extended will not have any Devastation errata or changes. There are quite a few things that need errata/change in Devastation, so it is possible that we may release something to this effect in the future.
Any chance this could be released as text on the internet b4 a product is made? and if so, where could we expect that info?
Also I think it'd be cool to have "balance boxes" that rebalance the characters every so often (of course not THAT often and only when necessary).