Apparently Polar has recently introduced a new product: Seltzerade! http://www.bostonmagazine.com/health/blog/2017/02/15/polar-seltzerade/#l3kfeLSAmLLZcs1f.01
According to the article these will be slightly more intensely flavored versions of seltzer, with a citrus base. Lemon is actually one of my least favorite seltzer flavors, but I do like it in combination with other things, so I’m interested to try some of these. Has anyone spotted them on shelves yet?