On the subject of Nacelle, the more I think about it, the more I want Skywarp with the ridiculous red wings from that promo picture.
We live in the era of "why not?".
Agreed. I know it's about "slots" and distribution and whatnot, but beyond that - Seekers just seem like a way to print money. I think the only Seeker in recent memory that could have remotely been called a shelf-warmer was Sparkless Seeker and I attribute that to him being a mud-colored toy in a box. Anything that is a fun color combo seems like it should do well. Just slot one in per wave (ideally using Earthrise regular/conehead molds).