Is next cyl2 banner rly going to be a brave heroes banner? Is it possible for it to be something else?

Nope, it really Is Brave heroes

Also do you have data matched for them? I really want to calculate How many orbs i could spend...

That's the point of the CYLs. It's "Brave" Alts of characters. Like the original it had Brave Lyn, Roy, Ike, and Lucina. Whether the NEXT banner is CYLs or not we don't know.

What else would they be? 'Legendary' Heroes?

oh wait.

They are referred to as Brave heroes as that was the consistent moniker given to the first round CYLs. Right now there is no telling what CYL2 will be. One suspicion is "Wise" heroes in the hope of Hector being his old man variant (we do need more beards in feh).

Realy? Where did they say that next banne will be CYL2, i only see new heroes in the event calendar, which doesn't necesarly mean cyl

I consider most of the answers to this post false info. Last CYL was Brave Heroes, which may or may not mean the same goes for CYL2, so yes, it's possible that it's something else.

Any in any event, "Brave Heroes" doesn't even mean anything, it was more of a father cosplay theme which I do not see how that relates to being "brave". It's really just a title that was stuck on them.