I'd also love to know this myself... I mean honestly I'm probably gonna homebrew for my own player's benefits regardless of official stances but if I ever wanna mix those feats with Nephilim as a player it'd be useful to know whether or not I'm trying to see my GM on a houserule.
So I'm thinking of subscribing for the Remaster because I really want the hardcovers and I've heard subscribers can get the PDFs early when their hard copy ships. I don't want to subscribe just yet though as I already have Treasure Vault and Rage of Elements PDFs. My question is, how soon before release do new books tend to be options for New Subscribers to start their subscriptions there?