It has already been confirmed that legendary and ascended weapons will have both sigil and infusion slots.
I assumed this was true all along, but can you link or quote this confirmation?
I finished crafting Twilight about three weeks ago. After fishing Dusk out of the toilet in early May, I figured that I could complete my first Legendary by the end of August. Fortunately the gathering, hoarding, and grinding progressed a little faster than expected. I am extremely happy with my new toy and quite excited about its upcoming power and flexibility boosts (yay Sept. 3rd patch!).
I seriously cant imagine they would remove the sigil slot. That’s not a nerf – that’s gutting it.
… If anything Legendaries should be able to freely choose between any existing sigil, just like with the stats ^^
This is a very intriguing suggestion.