I just really hope that we can put this entire "Do Spirits deconfirm characters???" to rest soon. preferably, with Elma being announced for DLC pack 2.
If you want to get closure on the spirits subject, we most likely will have our definitive answer next year, because DLC pack 2 is either not happening(because the basegame is build only for one pack really) or you have to wait till 2020.
The only way to destroy spirit theory is that we get a character that had a spirit in basegame, the naming of the Fighter spirit is the same as his/her regular spirit (Elma = Elma), because thats how it is for all the other spirits that have alternate forms (which only got amplified by the Lets Go Eevee Spirit)
If we get a character that follows all these rulings, then you can 100% say we have a Lucas and Mewtwo trophy situation, but lets be a bit realistic here those are some barriers you need to break first.
The things that fuel spirit theory still.
1. Pirahna Plant is missing out of 1300 choices
2. Alternate forms of characters have names that show they are differiated from the real character. (Lets take Link for example, it is true that there are other spirits for him that are named Link, but they are named like this "Link (The Legend of Zelda)", but the spirit with just the name "Link" is his fighter spirit. and you can apply this to all the other characters in the 1300 pool)
3. Alternate costumes for characters are fighter spirits to, which fuels point 2 even more.
I offcourse want spirit theory to be killed, but its slowly becoming the New Box Theory and I learned from previous Smash speculations, its best to lower your expectations if something like this pops up, because most of the time the doom scenario becomes real (well for Smash always really, R.O.B and Wolf for Brawl, ESRB for Smash 4 and Box Theory for Ultimate)