IDK why people keep bringing a nonexistant relation between those up.
They arent even that similar in design. I mean Alomomola vaguely resembles a heart on the side if you try hard, but beyond that there is nothing.
The colours are different, the stats are completely opposite, the basis is a different fish, and the theme is not the same. Luvdisc is about love, while Alomomola is about care.
In a way, Alomomola is the Chansey of the sea.
The only relation I could ever see between them is if Luvdiscs hypothetical evolution required Alomomola as a trigger in some way.
Jynx could also use an evolution, mainly because it's, in a way, part of a trio (Electabuzz, Magmar, Jynx), and Electabuzz and Magmar already have evolutions. A Pinsir evolution would probably be pretty cool, as would a Farfetch'd evolution.
They may have been intended as a trio conceptually at first, but that idea was scrapped and the birds made into the legendary trio.
Sure there was still some homage to that by them all getting a pre-evolution and their signature moves being elemental punches, but GS and on they only drifted completely apart.
Not just is Jynx much weaker than the other two in general, there is also the gender difference and an extra Psychic type.
Since it was weaker tho I would have nothing against it evolving (instead of the other two actually would have made more sense), except... I fear for its appearance to scare the crap out of us...