USS Kelcie Mae in ST: Strange New Worlds explained

"The USS Kelcie Mae has a single warp nacelle, an underslung deflector dish, and a pointed hull rather than a saucer section. It’s this unusual physical arrangement that makes the ship stand out, at least from a visual standpoint. In fact, it reminds us distinctly of the Olympic-class USS Pasteur as seen in the alternate future of All Good Things under the command of Captain Beverly Picard ..."