Instead of the by now standard assassin guild that doesn't actually achieve much in the way of making an impact on the lore timeline, how about a race specific inquisition on talos worship? Going around as a high/wood/cat elf kidnapping and assassinating secret worshippers and priestss and the like, infiltrating "covens" and taking them down from the inside. Putting heretics on public trial, ect. Alongside that (similar to the dawnguard story) a counter inquisition where you hunt down and assassinate inquisitors and thalmor sympathisers, as well as possible infiltrating them and helping the targets flee and fake their deaths. This easily ties in with the main/secondary story and is better than "kill this guy because money says so". Your thoughts?