Eh, we'll see how it sells, but I buy comics for the writer, not the concept, and apart from Azzarello none of those writers interest me.
Azzarello's hit and miss for me. The only one that sounds that interesting to me is the "Minutemen" one, insofar as (a) it's Darwyn Cooke; (b) its about characters who for the most part were minor players in the original series.
This isn't their best effort to ruin his legacy, IMO...The prequels just seem to lack the temerity of their other derivative crapfests.
You're not thinking "big" enough. If you really want to see DC crap all over Watchmen, wait until what happens if the prequels (and possible sequel) sell really well: there's no way DC won't break down at that point and find a way to do DCU/Watchmen team-ups, most likely in the concept of a weekly crossover "big event" mini-series.