I can't work up any strong feelings pro or con since this will only be released in the same alternate universe as David Lynch's Return of the Jedi, David Cronenberg's Total Recall, James Cameron's Spider-man, Tim Burton's Superman Lives, Joe Dantes Godzilla, and George Lucas' Apocalypse Now. Studio executives have a lot more spine in that universe and movie audiences much more adventurous.
Secondly, sad that when we read R-rating the only things we can think of are gratuitous F-bombs, excessive gore, and indulgent nudity. Complex themes and adult subject matter? Nah, just blood and tits.