so,now we only have to know who are CZ-3 and Turn-K (and the january/february boosters,if we follow the other seasons of burst)
with that said,I was looking for that 309.249.870.251 new names that Hasbro recently "registered",and searched for the names that matches more the beyblade sillhouettes (and initials).
let's start with Turn-K,the easiest one because we know what is the initial letter:
the only names that I've found with the letter K in
that list (I could have missed one,idk) are:
Kraken K4
Knight K4
in my opinion,both actually match the sillhouette to me,because it could be Knight,and be a refenrece to Aero Knight MS like Garuda was a reference to Trypio,and that contact points could be shaped like tentacles I guess.
now,the most intriguing one,CZ-3,we don't know the initials of it's name so this will all be based on the shape of the layer:
so,the layer seems to have some type of..."claw things" in the contact points,that's the most...distinctive part of the sillhouette I think?,so I was looking for the names that resembled the most a clawed creature,and then,I found (the ones in Bold are the ones that I think are most likely to actually be Cz-3):
Ogre O4
Cyclops O4
Sphinx S4
Gargoyle G4
I think Sphinks and Gargoyle are the mostlikely to be,because...just because I think they match more wiith the shape,really.For Sphinx,I could very well see that shape as a lion-based beyblade (wich is one of the motifs from sphinx,a....Lion with the head of a man),it could also kinda explain why that shape is so...disproportional,maybe,afterall the sphinx is all broken and all. For Gargoyle,I could also see the bigger circular blades being like,the wings and the claws being...well,the claws. Also,the claws in this sillhouette lokks much more "demonic" than normal lion claws,but this is just me.
but I could very well be completely wrong and these beyblades's names being none of the ones from the list and just be revealed later...
for those who wants to see the sillhouettes to form your own theories,here they are :)