With Update 17 came new possibilities, even for add-ons. When I saw the new Skill Advisor the second thing I thought was "Can add-ons implement custom builds, like @Deltia , @Alcast & @Woeler ones?". That would be awesome!

Another add-on idea is based on a necessity. When posting in threads like the Outfits Megathread, I wanted to keep detailing as much as possible the setup I used (motif, armor weight & dyes), even written down the first ones, but it took a long time to do so, specially on the dyes used part.
Then I thought, "Can an add-on get the info on what people used to create their outfit?".
I remembered similar functionality from @Dolgubon 's Lazy Set Crafter, where it can generate a mail text of the requirements to craft what you just added to the list. Although, I don't know how the Outfit System holds info on what collectibles (the way this system uses motifs) and dyes were used when an outfit is saved, or if it can be even accessible by add-ons. If so, it would make add-ons like DressingRoom be possible to "save" Outfit setups.

Oh, I wish I could code to bring those add-ons to life.