haven't played rogues since wotlk. i remember hemo and mutilate being "the thing" what are the typical specs for leveliing / dungeons / pvp now?

combat for pve probably

combat/sub for pvp

From what I know most people level as either Assassination or Combat these days. For a viable spec, you can check here: http://www.icy-veins.com/wow/rogue-leveling-guide

I don't pay much attention to the PVP scene these days, but from what I remember a lot of people swear by Subtlety and Combat this expansion. Many are angry that Assassination rogues still need a buff.

I main'd a sub rogue in cata and had a BiS lvl 70 twink sub rogue. Not sure how they are now, but people who main'd assassination rogues and knew what they were doing always proposed more problems than sub/combat rogues in a duel. Might be that I leveled as combat and pvp'd as sub (no dragon slaying) and didn't know anything about assassination rogues and their cool downs.

Won't matter for long, though. All rogue specs are being revamped in Legion. Sub rogues now carry a pistol hahaha