I would definitely get a Lucina amiibo if it does come out just like I would if there's a Greninja and Pac-Man amiibo.
As a side note. Thank you for all the likes on my post and glad you guys really liked it. I literally spent an hour writing it up and making sure my evidence and research was valid and fixed any errors I saw in the sentences. Totally worth it though. Glad I made a good impression to, it's the least I could do
![Bee :b: :b:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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While it's true Lucina was considered for an alternate costume for Marth and the similarities and connections between them in Awakening was the reason for the idea initially as Sakurai himself said. I don't think they had a costume swap made yet as it was still in the planning phases and when I think of considered, I just think of an idea they were thinking of before working on it and then changing it. Maybe its just me, but I'm glad you guys see it as a made creation, but expanded upon and enhanced. That after changing their minds on the idea, decided to create a full fledged playable character with perhaps some minor things from the costume idea. Being similar was always intentional just like it was with Toon Link, and Luigi. To me, Lucina was put in since the beginning of Smash bros. 4's development. I honestly like it when an initial idea evolves into something greater you know! A thing of beauty in game design.
I had to write the post because I felt bad for the Lucina fans for what they had to put up with just like what the poor Ridley and Mewtwo fans have to deal with (I am one of them).