It just occurred to me, that if the talents Subterfuge and Preparation stay as they are until the release of MoP, Night Elf rogues will essentially become invisible! Here's how:
[for reference, Subterfuge is the tier 1 rogue talent]
1. Open normally out of Stealth as you would, after the 3 initial seconds of Subterfuge, use a glyphed vanish
2. You're now invisible for 5 seconds (because of the vanish glyph) and will remain invisible for 3 seconds after stealth breaks.
3. Use Prep. to reset your Vanish and repeat the above
4. Shadowmeld for an additional 3 seconds of Subterfuge stealth
What are your opinions on this?