Someone straight up made those on MS Paint.
One way or another, I hope they can make the green unis the official alternate. While I did kinda like the baby blues aesthetically, the Jazz record in them was awful, and they looked too much like the Nuggets.
My step-dad was recently hired by the Jazz & the LHM companies to be the head buyer (don't know his official job title.. basically the main dude that oversees what Fanzz buys and how they sell it to their customers) for Fanzz. I want to say his official job title is President or VP of Fanzz.. can't really remember right now, but the Jazz ship him all over the country to meet with other NBA teams and discuss how they sell their apparel, etc.
And yes, the Jazz are getting a complete new floor. I read last offseason that they wanted a new floor for this past season but decided to wait for the new changes for next season. If they keep the mountain logo at all it will just be to satisfy NBA rules. I doubt you will see it anywhere other than on the floor, so it's really not that big of a deal.
I've got a friend who works for the Jazz. They were just shown the new floor today (told if they took a picture they would be fired) confirms the logo on the floor is the note logo (NOT the old logo re-colored) and the colors are dark blue, yellow and green. They will unveil the new logo in about 2 weeks time. Says it looks great!