I would really like:
Phantump and Trevenant - Ice/Ghost, I'd really like to have the pre-Phantump to put it lightly, to possess an icecube.
Swirlix and Slurpuff - Fairy/Ice, instead of whipped cream, this Pokémon is now ice cream!
Swirlix and Slurpuff - Fairy/Ground, based on the children's game of "baking mud pies".
Spritzee and Aromatisse - Fairy/Grass, inspired on flower bushes and vegan cosmetics.
Spritzee and Aromatisse - Fairy/Poison, diving deeper into the plague doctor persona.
Foongus and Amoonguss - Grass/Psychic or Psychic/Poison, based on Magic Mushrooms.
Finneon and Lumineon - Water/Bug or Water/Fairy, exploring Lumineon's origins: the beautiful butterfly fish.
Snorunt, Glalie and Froslass - Rock/Grass (Rock/Ghost for Froslass), "tropicalified" Ice-Types seems kind of awesome. Inspired by hawaiian totem stuff, and even though Froslass loses her Grass-Type, she'd still have a lot of Grass stuff.
Budew, Roselia and Roserade - Grass/Fighting, no inspiration at all, I just wanted to see an aggressive Roserade line. I imagine them using its flowers to calm down its foes, and then blast a Trop Kick in its face (Tsareena lost her signature move).
Ralts, Kirlia, Gardevoir and Gallade - Ghost/Dark (Ghost/Fairy for Gallade), remember the entry that says "Gardevoir will do anything to protect its trainer"? Well, let's just say she saved someone who didn't even care about her? Instead of her creating black holes, she IS a black hole, her heart is empty and abandoned all kindness. Inspired on Swan Lake (the good side being regular Gardevoir, and the bad side being this Gardevoir). The reason why Gallade is Ghost/Fairy is because he learned that there will be some evil people, but there will be other people that will always see the light - he regained his kind heart, his Fairy-Type, and his motives to fight for its trainer, even after death.
Yanma and Yanmega - Dragon-Fairy, mixing two of the popular fairytale stereotypes together. Dragonflies are the perfect animal to represent both.
Sunkern and Sunflora - Grass-Fire, putting the SUN in SUNflower.
Staryu and Starmie - Fire/Psychic, exploring the extraterrestrial side of those Pokémon.
Happiny, Chansey and Blissey - Ghost/Fairy, just would be cool of having the idea of a Ghost Healer.
Exeggcute and Exeggutor - Grass/Electric, inspired on energy-powered, shiny christmas tree decorations, and Exeggutor IS a Christmas Tree. It would be nice to have a christmas Pokémon that doesn't scream ICE in both of your ears.
Voltorb and Electrode - Water/Electric, just a beach ball, but it would mean a world to those neglected (sadly for me to admit, for a pretty good reason) Pokémon.
Gastly, Haunter and Gengar - Ghost/Water, inspired on spirits that hide on the mist.
Drowzee and Hypno - Ground/Fairy, flipping the dream side of the coin from nightmares to dreams, and who's better than the Sandman fairytale to represent good dreams?
Bellsprout, Weepinbell and Victreebel - Grass/Fire, pepper. No need to say anything else. Just pepper.